David Cassirer v. Thyssen-Bornemisza Collection ( 2023 )


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  •                   FOR PUBLICATION
    UNITED STATES COURT OF APPEALS
    FOR THE NINTH CIRCUIT
    DAVID CASSIRER; THE ESTATE                  No. 19-55616
    OF AVA CASSIRER; UNITED
    JEWISH FEDERATION OF SAN                      D.C. No.
    DIEGO COUNTY, a California non-            2:05-cv-03459-
    profit corporation,                            JFW-E
    Plaintiffs-Appellants,
    ORDER
    v.                                         CERTIFYING
    QUESTION TO
    THYSSEN-BORNEMISZA                        THE CALIFORNIA
    COLLECTION FOUNDATION,                       SUPREME
    Defendant-Appellee.                 COURT
    Appeal from the United States District Court
    for the Central District of California
    John F. Walter, District Judge, Presiding
    Argued and Submitted December 12, 2022
    Pasadena, California
    Filed May 22, 2023
    Before: Consuelo M. Callahan, Carlos T. Bea, and Sandra
    S. Ikuta, Circuit Judges.
    Order;
    Dissent by Judge Bea
    2                         CASSIRER V. TBC
    SUMMARY*
    Certification of Question to State Supreme Court
    In an action brought by the Cassirer family under the
    Foreign Sovereign Immunities Act, seeking the return of a
    Pissarro painting stolen by the Nazis and now in the
    possession of Thyssen-Bornemisza Collection Foundation
    (TBC), an entity created and controlled by the Kingdom of
    Spain, the panel certified to the California Supreme Court
    the following question concerning the third step in
    California’s governmental interest choice-of-law test:
    Whether, under a comparative impairment analysis,
    California’s or Spain’s interest is more impaired if
    California’s rule that a person may not acquire title to a
    stolen item of personal property (because a thief cannot pass
    good title, and California has not adopted the doctrine of
    adverse possession for personal property), were
    subordinated to Spain’s rule that a person may obtain title to
    stolen property by adverse possession.
    Applying the first step of California’s governmental
    interest test, the panel concluded that the issue in question
    was a question of personal property law: whether TBC or the
    Cassirers own the painting; and the relevant law of the two
    jurisdictions      of    Spain    and      California    was
    different. Applying the second step of the test, the panel
    concluded that a true conflict existed between Spanish and
    California law, meaning that each jurisdiction had a
    *
    This summary constitutes no part of the opinion of the court. It has
    been prepared by court staff for the convenience of the reader.
    CASSIRER V. TBC                      3
    legitimate interest in the application of its law and
    policy. The third step of the test required application of the
    law of the jurisdiction whose interest would be the more
    impaired if its law were not applied. The panel concluded
    that it needed the California Supreme Court’s guidance on
    how to apply the third step because the existing California
    caselaw applying the comparative impairment analysis to
    tortious, and typically physical, injuries did not provide
    guidance in the context of property law, where it was
    necessary to determine which jurisdiction’s interests would
    be more impaired when the issue was one of allocating title
    to stolen property.
    The panel wrote that, in deciding to exercise its
    discretion to invoke the certification process, it considered
    that the case raised important, unresolved public policy
    ramifications of broad application regarding the ownership
    of stolen property, and that the issues were particularly
    thorny and substantial, given that stolen property cases may
    involve two innocent claimants to a specific piece of valued
    property which must be awarded to one claimant or the
    other. Further, in the spirit of comity and federalism, the
    panel recognized that the California legislature has
    expressed a particular policy interest in stolen art.
    Dissenting from the certification order, Judge Bea wrote
    that, in his view, application of California’s three-step
    choice-of-law test to the facts of this case was
    straightforward, and Spanish law applied. Judge Bea wrote
    that improper certification harms state courts, strains the
    comity between federal and state courts, harms federal
    courts by encouraging forum shopping bids, and harms
    litigants through delays.
    4                     CASSIRER V. TBC
    COUNSEL
    David Boies (argued), Boies Schiller Flexner LLP, Armonk,
    New York; Stephen N. Zack, Andrew S. Brenner, Rossana
    Baeza, Boies Schiller Flexner LLP, Miami, Florida; Scott E.
    Gant, Boies Schiller Flexner LLP, Washington, D.C.; David
    A. Barrett, Boies Schiller Flexner LLP, New York, New
    York; Laura W. Brill and Nicholas Daum, Kendall Brill &
    Kelly LLP, Los Angeles, California; Samuel J. Dubbin,
    Dubbin & Kravetz LLP, Coral Gables, Florida; Devin
    Freedman, Freedmand Normand Friedland LLP, Miami,
    Florida; for Plaintiffs-Appellants.
    Thaddeus J. Stauber (argued), Sarah Erickson André, Aaron
    M. Brian, and Irene Scholl-Tatevosyan, Nixon Peabody
    LLP, Los Angeles, California, for Defendant-Appellee.
    Bernard M. Cremades Román and Patrick T. Byrne, B.
    Cremades & Asociados, Madrid, Spain, for Amici Curiae
    Comunidad Judía de Madrid and Federacíon de
    Comunidades Judías de España.
    Amelia L.B. Sargent and Kirby Hsu, Willenken LLP, Los
    Angeles, California, for Amicus Curiae the Kingdom of
    Spain.
    Catherine Z. Ysrael and Ben Conway, Deputy Attorneys
    General; Srividya Panchalam, Supervising Deputy Attorney
    General; Michael L. Newman, Senior Assistant Attorney
    General; Rob Bonta, Attorney General of California; Office
    of the California Attorney General; Los Angeles, California;
    for Amicus Curiae the States of California.
    CASSIRER V. TBC                       5
    ORDER
    We ask the California Supreme Court to resolve a
    question of state law: how the comparative impairment
    analysis, the third step in California’s choice-of-law test,
    applies in a situation where, under the laws of California, a
    person may not acquire title to a stolen item of personal
    property (because a thief cannot pass good title, and
    California has not adopted the doctrine of adverse possession
    for personal property), while under the conflicting laws of
    Spain, a person may acquire title to a stolen item of personal
    property by means of adverse possession. This question
    requires the application of the “choice of law considerations
    most relevant to property cases.” Cassirer v. Thyssen-
    Bornemisza Collection Found., 
    862 F.3d 951
    , 962 (9th Cir.
    2017) (Cassirer III).
    While California has applied the comparative
    impairment analysis in many cases involving California
    residents who were physically injured by the conduct of out-
    of-state defendants, we have found no California precedent
    applying this analysis in a case involving the allocation of
    title to stolen personal property, and the factors identified in
    other choice-of-law cases are not readily applicable.
    “We invoke the certification process only after careful
    consideration and do not do so lightly.” Kremen v. Cohen,
    
    325 F.3d 1035
    , 1037 (9th Cir. 2003). “In deciding whether
    to exercise our discretion, we consider: (1) whether the
    question presents important public policy ramifications yet
    unresolved by the state court; (2) whether the issue is new,
    substantial, and of broad application; (3) the state court’s
    caseload; and (4) the spirit of comity and federalism.”
    Murray v. BEJ Mins., LLC, 
    924 F.3d 1070
    , 1072 (9th Cir.
    2019) (cleaned up). This case raises important, unresolved
    6                         CASSIRER V. TBC
    public policy ramifications of broad application regarding
    the ownership of stolen property, and the issues here are
    particularly thorny and substantial, given that stolen
    property cases may involve two innocent claimants to a
    specific piece of valued property which must be awarded to
    one claimant or the other. Further, in the spirit of comity and
    federalism, we recognize that the California legislature has
    expressed a particular policy interest in stolen art. See Von
    Saher v. Norton Simon Museum of Art at Pasadena, 
    592 F.3d 954
    , 958, 964–65 (9th Cir. 2010), cert. denied, 
    564 U.S. 1037
     (2011); see also Cal. Code Civ. Proc. § 338(c)(3)(A).
    Therefore, after considering these factors, we exercise
    our discretion to certify this question to the California
    Supreme Court. Pursuant to Rule 8.548 of the California
    Rules of Court, we provide the following information.
    I
    We first summarize the material facts and procedural
    history.1 At issue in this case is the ownership of Camille
    Pissarro’s Rue Saint-Honoré in the Afternoon, Effect of Rain
    (the Painting). Paul Cassirer, a member of a prominent
    German Jewish family, purchased the Painting in 1900.
    Cassirer V, 142 S. Ct. at 1506. In 1939, “[a]fter the Nazis
    came to power in Germany,” Lilly Cassirer, Paul Cassirer’s
    successor-in-interest, surrendered the Painting “to obtain an
    1
    The facts are more fully set forth in four Ninth Circuit opinions,
    Cassirer v. Kingdom of Spain, 
    616 F.3d 1019
     (9th Cir. 2010) (en banc),
    cert. denied 
    564 U.S. 1037
     (2011) (Cassirer I); Cassirer v. Thyssen-
    Bornemisza Collection Found., 
    737 F.3d 613
     (9th Cir. 2013) (Cassirer
    II); Cassirer III, 
    862 F.3d 951
    ; Cassirer v. Thyssen-Bornemisza
    Collection Found., 
    824 F. App’x 452
    , 454–55 (9th Cir. 2020) (Cassirer
    IV), and a Supreme Court opinion, Cassirer v. Thyssen-Bornemisza
    Collection Found., 
    142 S. Ct. 1502 (2022)
     (Cassirer V).
    CASSIRER V. TBC                            7
    exit visa.” Id. at 1506. The parties agree that the Painting
    “was forcibly taken from Lilly.” Cassirer III, 
    862 F.3d at 955
    .2
    After the Painting was confiscated, it was sold at a Nazi
    government auction in Dusseldorf and then sold again at a
    second auction in Berlin. 
    Id. at 956
    . In 1951, a Beverly Hills
    art gallery arranged to move the Painting to California. 
    Id.
    From there, it was sold first to a California art collector, and
    then to another collector in St. Louis, 
    id.,
     where it remained
    from 1952 to 1976, Cassirer V, 142 S. Ct. at 1506. In 1976,
    Baron Hans Heinrich Thyssen-Bornemisza purchased the
    Painting through a gallery in New York, and kept the
    Painting in his residence in Switzerland until 1992. Cassirer
    V, 142 S. Ct. at 1506; Cassirer III, 861 F.3d at 974. In 1988,
    the Baron agreed to loan his art collection, including the
    Painting, to the Thyssen-Bornemisza Collection Foundation
    (TBC), an entity created and controlled by the Kingdom of
    Spain. Cassirer III, 
    862 F.3d at 957
    . In 1993, the Spanish
    government bought the Baron’s collection. 
    Id.
     “In addition
    to financing the $300 million-plus purchase, the Spanish
    Government provided [TBC] with a palace in Madrid to
    serve as a museum for the collection.” Cassirer V, 142 S.
    Ct. at 1506.
    Before entering into the acquisition agreement with the
    Baron, the Spanish government investigated title to the
    work. Cassirer III, 
    862 F.3d at 957
    . As part of the
    acquisition agreement, the Baron represented to TBC that an
    entity he controlled was the legal owner of the artworks in
    2
    Although Lilly Cassirer later accepted a settlement agreement, we
    previously concluded that as a matter of German law, she “did not waive
    her right to physical restitution of the Painting” by doing so. Cassirer
    III, 
    862 F.3d at 978
    . This issue is not on appeal.
    8                      CASSIRER V. TBC
    the collection, and that TBC would become “the absolute
    beneficial owner” of those artworks, including the Painting.
    Cassirer v. Thyssen-Bornemisza Collection Found., 
    2019 WL 13240413
    , at *11 (C.D. Cal. Apr. 30, 2019); see also
    Cassirer IV, 824 F. App’x at 457. At TBC’s request, the
    Baron agreed to pledge $10 million for three years as
    security for its performance of its agreement. Id.; see also
    Cassirer IV, 824 F. App’x at 457. The purpose of this pledge
    was to protect TBC and the Kingdom of Spain from the risk
    that one or more paintings could have a title issue, and the
    three-year term was intended to correspond to Spain’s three-
    year good faith acquisitive prescription period as provided
    in Article 1955 of the Spanish Civil Code. Id. In 1999,
    Claude Cassirer, Lilly Cassirer’s grandson and successor-in-
    interest and a California resident, became aware of the
    Painting’s location after TBC’s museum in Madrid
    published a catalogue of its holdings. Cassirer V, 142 S. Ct.
    at 1506.
    In 2005, Claude Cassirer sued TBC in district court in
    California under the Foreign Sovereign Immunities Act
    (FSIA), 
    28 U.S.C. § 1330
    . Cassirer I, 
    616 F.3d at 1023
    . In
    2010, we held en banc that TBC was not immune from suit
    under the FSIA, and the lawsuit could go forward. 
    Id. at 1022
    . Claude Cassirer passed away shortly after our en banc
    ruling, and his heirs (the Cassirers) were substituted as
    plaintiffs. Cassirer V, 142 S. Ct. at 1507. The district court
    then granted TBC’s motion to dismiss the Cassirers’
    complaint as barred by the statute of limitations. The court
    reasoned that Section 338(c)(3) of the California Code of
    Civil Procedure, which retroactively extended the statute of
    limitations for claims seeking the recovery of stolen fine art,
    was preempted under the foreign affairs doctrine, and
    therefore did not save the Cassirers’ claim. Cassirer v.
    CASSIRER V. TBC                       9
    Thyssen-Bornemisza Collection Found., 
    2012 WL 12875771
    , at *2 (C.D. Cal. May 24, 2012). We reversed that
    portion of the district court’s ruling and remanded for further
    proceedings. Cassirer II, 
    737 F.3d at 621
    .
    On remand, the Cassirers moved for an order declaring
    that the law of California, not the law of Spain, governed the
    merits of their action. The district court recognized that
    before making this determination, it first had to determine
    whether it should apply California or federal common law
    choice-of-law rules.        Cassirer v. Thyssen-Bornemisza
    Collection Found., 
    153 F. Supp. 3d 1148
    , 1154 (C.D. Cal.
    2015). The district court applied our then-current precedent,
    which held that federal common law choice-of-law rules
    governed a case arising under the FSIA. 
    Id.
     (citing
    Schoenberg v. Exportadora de Sal, S.A. de C.V., 
    930 F.2d 777
    , 782 (9th Cir. 1991)). Applying federal choice-of-law
    rules, the district court determined that Spanish law applied.
    Id. at 1155. “[O]ut of an abundance of caution,” id. at 1154,
    the district court also applied California choice-of-law rules,
    and reached the same conclusion, id. at 1160. Applying
    Spanish law, the district court ruled that TBC was the
    rightful owner of the Painting, pursuant to Spain’s law of
    acquisitive prescription, as stated in Article 1955 of the
    Spanish Civil Code. Id. at 1160.
    On appeal, we agreed that federal choice-of-law rules
    applied, and declined to consider how California choice-of-
    law rules would apply to this case. Cassirer III, 
    862 F.3d at
    961–62.      Under the federal choice-of-law rules, we
    recognized that California and Spain “have chosen different
    rules for movable property.” 
    Id. at 964
    . After resolving the
    conflict between California’s rule (that “thieves cannot pass
    good title to anyone,” 
    id. at 960
    ) and Spain’s rule (that title
    to chattels may pass through extended possession), we
    10                     CASSIRER V. TBC
    decided that Spanish law applied. 
    Id. at 963
    . Applying
    Spanish law, we considered whether TBC had fulfilled the
    requirements for ownership of the Painting set forth in
    Articles 1955 and 1956 of the Spanish Civil Code. 
    Id. at 964
    .      As we explained, Article 1955 provides that
    “[o]wnership of movable property prescribes by three years
    of uninterrupted possession in good faith,” while
    “[o]wnership of movable property also prescribes by six
    years of uninterrupted possession, without any other
    condition.” 
    Id. at 965
     (quoting Ministerio de Justicia, Spain
    Civil Code 220 (2009) (English translation)). But we
    determined that acquisitive prescription under Article 1955
    is modified by Article 1956, which states: “Movable
    property purloined or stolen may not prescribe in the
    possession of those who purloined or stole it, or their
    accomplices or accessories [encubridores], until the crime or
    misdemeanor or its sentence, and the action to claim civil
    liability arising therefrom, should have become barred by the
    statute of limitations.” 
    Id. at 966
     (quoting Ministerio de
    Justicia, Spain Civil Code 220 (2009) (English translation)).
    This meant that, “as to any principals, accomplices, or
    accessories (encubridores) to a robbery or theft, Article 1956
    extends the period of possession necessary to vest title to the
    time prescribed by Article 1955 plus the statute of
    limitations on the original crime and the action to claim civil
    liability.” 
    Id.
     “An encubridor within the meaning of Article
    1956 can include someone who, with knowledge that the
    goods had been stolen from the rightful owner, received
    stolen goods for his personal benefit.” 
    Id. at 981
    . We
    concluded that “there is a genuine dispute of material fact
    whether TBC knew the Painting had been stolen when TBC
    acquired the Painting from the Baron,” and therefore there
    was a genuine issue of material fact as to whether TBC was
    CASSIRER V. TBC                     11
    an encubridor, as that term was used in Article 1956. 
    Id.
     If
    TBC were an encubridor, it would not have acquired title to
    the Painting through acquisitive prescription until 2019, and
    so the period for acquisitive prescription had not yet run
    when the Cassirers brought their action against TBC. 
    Id. at 966
    . Therefore, we reversed the district court and remanded
    the action for further proceedings. 
    Id. at 981
    .
    On remand, the district court conducted an extensive
    bench trial and concluded that TBC was not an encubridor
    because it did not have actual knowledge that the Painting
    was stolen when it purchased the Painting from the Baron in
    1993. Cassirer v. Thyssen-Bornemisza Collection Found.,
    
    2019 WL 13240413
    , at *20–22 (C.D. Cal. Apr. 30, 2019).
    Therefore, the district court concluded, TBC had acquired
    title to the Painting pursuant to Spain’s law of acquisitive
    prescription before the Cassirers brought their action. Id. at
    *22. We affirmed. Cassirer IV, 824 F. App’x at 454–55.
    The Cassirers petitioned for certiorari on the question
    whether a federal court hearing state-law claims brought
    under the FSIA may apply federal common law to determine
    what substantive law governs the claims at issue. Cassirer
    V, 142 S. Ct. at 1507. The Supreme Court granted the
    petition, and held that the FSIA “requires the use of
    California’s choice-of-law rule—because that is the rule a
    court would use in comparable private litigation.” Id. at
    1508–09. Because we had applied the federal common law
    rule, the Supreme Court vacated our judgment and remanded
    for application of California’s “standard rule.” Id. at 1508,
    1510.
    On remand from the Supreme Court, we must apply
    California’s choice-of-law rule to determine whether
    Spanish or California law applies to this action.
    12                      CASSIRER V. TBC
    II
    The California Supreme Court has indicated that the
    governmental interest test is “the appropriate general
    methodology for resolving choice-of-law questions” in
    California. McCann v. Foster Wheeler LLC, 
    48 Cal. 4th 68
    ,
    83 (2010). The parties agree that California’s governmental
    interest test is the appropriate means for determining
    whether Spanish or California law applies to the Cassirers’
    action. The California Supreme Court has described the
    governmental interest test as involving three steps. First, a
    court must determine “whether the relevant law of each of
    the potentially affected jurisdictions with regard to the
    particular issue in question is the same or different.”
    Kearney v. Salomon Smith Barney, Inc., 
    39 Cal. 4th 95
    , 107
    (2006). Second, if the law is different, “the court examines
    each jurisdiction’s interest in the application of its own law
    under the circumstances of the particular case to determine
    whether a true conflict exists.” 
    Id.
     at 107–08. Finally, if
    there is a true conflict, the court “carefully evaluates and
    compares the nature and strength of the interest of each
    jurisdiction in the application of its own law to determine
    which state’s interest would be more impaired if its policy
    were subordinated to the policy of the other state.” 
    Id. at 108
    (citation and quotation marks omitted). After conducting
    this comparative impairment analysis, the court “then
    ultimately applies the law of the state whose interest would
    be the more impaired if its law were not applied.” 
    Id.
     We
    have concluded that we need the California Supreme Court’s
    guidance on how to apply the third step of this test to the case
    before us, as explained below.
    CASSIRER V. TBC                          13
    A
    Applying the first step of this test, “the particular issue
    in question” is a question of personal property law: whether
    TBC or the Cassirers own the Painting, which was forcibly
    taken from the Cassirers by the Nazis, but which has been
    held in a Spanish museum by TBC since 1993 without actual
    knowledge that the Painting was stolen when purchased.
    The relevant Spanish law is set forth in Article 1955 of
    the Spanish Civil Code, which provides that ownership in
    personal property vests after three years of uninterrupted
    good faith possession of that property or six years of
    uninterrupted possession, even absent good faith. Cassirer
    III, 
    862 F.3d at 965
    .3
    By contrast, “[u]nder California law, thieves cannot pass
    good title to anyone, including a good faith purchaser.” 
    Id. at 960
    . The California Supreme Court has stated that:
    the seller of ordinary property can transfer to
    the buyer no better title than he has himself,
    and that if such property has been lost by the
    true owner, or stolen from him, one who buys
    from the finder or from the thief, though he
    pays full value and buys in good faith,
    without notice, obtains no title as against the
    true owner.
    Crocker Nat’l Bank of S.F. v. Byrne & McDonnell, 
    178 Cal. 329
    , 332 (1918); see also Suburban Motors, Inc. v. State
    Farm Mut. Auto Ins. Co., 
    218 Cal. App. 3d 1354
    , 1359
    3
    Article 1956 of the Spanish Civil Code, which extends the period for
    acquisitive prescription, is not applicable here. See supra 8–9.
    14                      CASSIRER V. TBC
    (1990) (reaffirming and applying “the common law rule that
    good title cannot pass from a thief”). In light of this
    principle, California law “imposes a continuing affirmative
    duty to restore stolen property to its rightful owner,” and
    dictates that “[s]tolen property remains stolen property, no
    matter how many years have transpired from the date of the
    theft.” Naftzger v. Am. Numismatic Soc’y, 
    42 Cal. App. 4th 421
    , 432 (1996), as modified on denial of reh’g (Mar. 4,
    1996); People v. Hernandez, 
    172 Cal. App. 4th 715
    , 722
    (2009) (stating that because “a thief cannot pass title to
    stolen property[,] . . . the true owner can reclaim the property
    from whoever has possession”). This common law rule is
    consistent with the California Commercial Code (the version
    of the Uniform Commercial Code enacted in California),
    which states that a purchaser can acquire only the “title
    which his transferor had or had power to transfer,” and a
    thief lacks any transferable title. Suburban Motors, 218 Cal.
    App. 3d at 1359 (citing 
    Cal. Com. Code § 2403
    (1)); see also
    CRS Recovery, Inc. v. Laxton, 
    600 F.3d 1138
    , 1145 (9th Cir.
    2010) (stating that, under Section 2403(1), a “purchaser
    whose vendor obtained title by theft” cannot obtain good
    title “because an involuntary transfer results in a void title”).
    California has not adopted the Spanish rule “that title to
    chattels may pass through qualified, extended possession.”
    Cassirer III, 
    862 F.3d at
    961 n.8. To the contrary, “no
    California case has been cited in support of” applying
    adverse possession law to personal property, Soc’y of Cal.
    Pioneers v. Baker, 
    43 Cal. App. 4th 774
    , 785 n.13 (1996),
    and the California Supreme Court has yet “to consider the
    question” whether “a title of adverse possession or
    CASSIRER V. TBC                              15
    prescription . . . should be applied to personal property,” S.F.
    Credit Clearing House v. Wells, 
    196 Cal. 701
    , 707 (1925).4
    As we previously determined, the rules adopted by Spain
    and California on title to stolen property are in conflict. See
    Cassirer III, 
    862 F.3d at 960
    .              We noted that,
    notwithstanding a Spanish Civil Code provision indicating
    that a person can claim stolen personal property from its
    possessor, “the Spanish Civil Code must be read in its
    entirety, including those articles which provide that title to
    chattels may pass through qualified, extended possession,
    such as Article 1955.” 
    Id.
     at 961 n.8. Because the Spanish
    rules, taken as a whole, conflicted with California’s rule, we
    4
    Although California allows adverse possession of real property, Dissent
    43–44 & 44 n.5, n.6, those laws are not relevant here, because real
    property is fundamentally different from personal property, see Real Est.
    Analytics, LLC v. Vallas, 
    160 Cal. App. 4th 463
    , 476 (2008), and the
    considerations underlying the adverse possession of land are generally
    inapplicable to chattels, see O’Keeffe v. Snyder, 
    416 A.2d 862
    , 871 (N.J.
    1980); see also Steven A. Bibas, The Case Against Statutes of
    Limitations for Stolen Art, 103 YALE L.J. 2437, 2438 (1994) (“Adverse
    possession, a doctrine that works well for real estate, is not suited to the
    very different realm of movable, concealable personal property.”). For
    instance, an owner of real property “knows or should know where his
    property is located and reasonably can be expected to be aware of open,
    notorious, visible, hostile, continuous acts of possession on it.”
    O’Keeffe, 416 A.2d at 873. By contrast, the doctrine of adverse
    possession is a poor fit for “works of art,” which are “readily moved and
    easily concealed” and may be enjoyed by owners “in the privacy of their
    homes.” Id. in at 871; see also Patty Gerstenblith, The Adverse
    Possession of Personal Property, 37 BUFF. L. REV. 119, 124 (1989)
    (“The fundamental problem is that when dealing with personal property,
    unlike real property, the adverse possessor can use the property as would
    a true owner (that is, openly, notoriously, visibly), and yet the owner—
    even the diligent owner—may never in fact receive notice of the adverse
    claim.”).
    16                         CASSIRER V. TBC
    concluded that it was necessary to resolve that conflict,
    which we proceeded to do under the federal choice-of-law
    rules. Id. at 960–64.5
    The Supreme Court subsequently confirmed our
    conclusion. In Cassirer V, the Court recognized that “the
    substantive law differed” when, in one jurisdiction, “the
    plaintiff would recover the art, and in the other not.” 142 S.
    Ct. at 1508. Faced with the question “whose property law
    (Spain’s? California’s?) should govern the suit, and thus
    determine the [P]ainting’s rightful owner,” the Court found
    it necessary to identify and apply the correct choice-of-law
    rule. Id. at 1507. And other courts have repeatedly applied
    choice-of-law principles to resolve a conflict between a
    jurisdiction that applies adverse possession principles to
    chattels and a competing jurisdiction that adheres to the rule
    that a thief cannot pass good title.               See, e.g.,
    Kunstsammlungen Zu Weimar v. Elicofon, 
    536 F. Supp. 829
    ,
    846 (E.D.N.Y. 1981) (holding that the conflict between the
    German law of adverse possession of chattels (“Ersitzung”)
    and New York’s rule “that a purchaser cannot acquire good
    title from a thief” required a choice-of-law analysis to
    resolve dispute over ownership of paintings), aff’d 
    678 F.2d 1150
     (2d Cir. 1982); see also Bakalar v. Vavra, 
    619 F.3d 136
    , 140–41, 143–44 (2d Cir. 2010) (holding that the
    conflict between New York’s rule and Article 934 of the
    Swiss Code, under which “a buyer acting in good faith will
    acquire valid title to stolen property after a period of five
    years,” required an analysis of “the appropriate choice of
    5
    The dissent’s argument that there is only a “false conflict” between the
    laws of California and Spain regarding the ownership of stolen property,
    Dissent 39–40, 52 n.12, is therefore contrary to the law of the case.
    CASSIRER V. TBC                            17
    law” to achieve “the resolution of an ownership dispute in
    the Drawing”) (emphasis omitted).6
    Because Spanish law expressly recognizes “that title to
    chattels may pass through qualified, extended possession,”
    Cassirer III, 
    862 F.3d at
    961 n.8, while no California judicial
    decision or statute has ever authorized such a practice, and
    California law has made clear that “[s]tolen property remains
    stolen property, no matter how many years have transpired
    from the date of the theft,” Naftzger, 42 Cal. App. 4th at 432,
    the relevant laws of these jurisdictions are different “with
    regard to the particular issue in question,” Kearney, 
    39 Cal. 4th at 107
    .
    We recognize that the dissent’s opposition to certifying
    this question is based on its deep-rooted conviction that
    California’s rule (that a thief cannot pass good title) is not in
    conflict with Spain’s rule (that a recipient of stolen property
    can obtain good title when the time period for acquisitive
    prescription has passed), and therefore there is only a “false
    conflict” between California and Spanish law. Dissent 39–
    40, 52 n.12. The dissent bases this conclusion on an
    elaborate chain of reasoning, starting with a cryptic 1872
    statute, Section 1007 of the California Civil Code, that has
    6
    Commentators have also recognized that, “[w]hen the owner (or his or
    her descendants) tries to reclaim stolen art from a bona fide purchaser,
    choice of law can make an enormous difference, because some states
    give the bona fide purchaser strong rights (usually through the doctrine
    of adverse possession) while others limit the operation of adverse
    possession,” and that “[s]uch disputes are difficult” in light of states’
    “widely divergent laws applicable to such situations.” Daniel M.
    Klerman, Jurisdiction, Choice of Law and Property, Univ. of S. Cal. Law
    School Legal Studies Working Paper Series, Paper 112 at 3, 11 (2016),
    available at https://law.bepress.com/cgi/viewcontent.cgi?referer=&https
    redir=1&article=1250&context=usclwps-lss.
    18                          CASSIRER V. TBC
    never been applied to adverse possession of personal
    property, Dissent 38, moving to a California court of appeal
    case indicating that the question whether the doctrine of
    adverse possession applies to personal property has not been
    settled, Dissent 39, 47 n.8, 49 (citing Soc’y of Cal. Pioneers,
    43 Cal. App. 4th at 785 n.13), and then attempting to
    distinguish another California court of appeal case stating
    that “[s]tolen property remains stolen property, no matter
    how many years have transpired from the date of the theft.”
    Dissent 45–48 & 45 n.7, 47 n.8 (citing Naftzger, 
    42 Cal. App. 4th 421
    ).7 The dissent’s attenuated analysis and
    argumentation only underscore that this is an undecided area
    of California law, and principles of comity and federalism
    render it more appropriate to ask the California Supreme
    Court to weigh in rather than for federal judges to engage in
    competing interpretations of state law. See L.A. All. For
    Survival v. City of Los Angeles, 
    22 Cal. 4th 352
    , 360–61
    (2000) (stating that “the benefits of certification” include
    “allow[ing] federal courts to avoid mischaracterizing state
    law” and “strengthen[ing] the primacy of the state supreme
    7
    In making this argument, the dissent also relies on Blizzard Energy, Inc.
    v. Schaefers, which held that there was no conflict between California
    and Kansas law where California applied the doctrine of “reverse veil
    piercing” (i.e., allowing a plaintiff injured by an individual to sue the
    individual’s alter ego corporate entity) and Kansas had not addressed that
    doctrine. Dissent 39–41 & 40 n.2, 41 n.3 (citing 
    71 Cal. App. 5th 832
    ,
    855–56 (2021), rev. denied (Feb. 16, 2022)). Blizzard Energy is
    inapplicable here, however, because the parties did not argue that the
    doctrine of reverse veil piercing was inconsistent with any other Kansas
    doctrine, whereas here there is a conflict between California and Spanish
    law regarding title to stolen property, and only the dissent asserts
    otherwise.
    CASSIRER V. TBC                      19
    court in interpreting state law by giving it the first
    opportunity to conclusively decide an issue”).
    For purposes of this order, we do not address the
    question whether California courts would apply the
    principles of adverse possession to personal property in
    some future case. Nor, contrary to the dissent, do we assert
    that “California law vests theft victims with eternal,
    supercharged title that trumps any and all future civil law
    claims to title.” Dissent 47. Rather, we simply follow the
    Supreme Court in noting that, under California law as it
    currently stands, “the plaintiff would recover the art” while
    under Spanish law, the plaintiff would not. Cassirer V, 142
    S. Ct. at 1508. The Supreme Court recognized that this
    difference created a conflict that required the application of
    the correct choice-of-law rule. Id. at 1507. We therefore
    also recognize the conflict, and explain why we need the
    California Supreme Court’s help to resolve it.
    B
    The second question is whether a true conflict exists
    between Spanish and California law. A true conflict exists
    when each jurisdiction has “a legitimate interest in the
    application of its law and policy.” Hurtado v. Superior Ct.,
    
    11 Cal. 3d 574
    , 580 (1974). “Although the two potentially
    concerned states have different laws, there is still no problem
    in choosing the applicable rule of law where only one of the
    states has an interest in having its law applied.” 
    Id.
    We have previously recognized that both Spain and
    California have an interest in upholding their basic policies
    underlying property law. In Cassirer III, we explained that
    “[t]he property laws of both Spain and California seek to
    create certainty of title, discourage theft, and encourage
    owners of stolen property to seek return of their property in
    20                     CASSIRER V. TBC
    a timely fashion,” and noted that, “[a]lthough these states
    have chosen different rules for movable property, both sets
    of rules further the basic polices underlying property law.”
    
    862 F.3d at 964
    .
    The California Supreme Court has recognized “that a
    jurisdiction ordinarily has the predominant interest in
    regulating conduct that occurs within its borders,” McCann,
    
    48 Cal. 4th at
    97–98 (citation and quotation marks omitted),
    as well as “in being able to assure individuals and
    commercial entities operating within its territory that
    applicable limitations on liability set forth in the
    jurisdiction’s law will be available to those individuals and
    businesses in the event they are faced with litigation in the
    future,” 
    id. at 98
    ; see also Cooper v. Tokyo Elec. Power Co.
    Holdings, Inc., 
    960 F.3d 549
    , 562 (9th Cir. 2020). In light
    of this rule, both Spain and California have a legitimate
    interest in applying their respective laws on ownership of
    stolen personal property.
    Spain has an interest in regulating conduct that occurs
    within its borders, including applying its long-standing rule
    governing acquisitive prescription of personal property,
    which assures Spanish residents that their title to personal
    property is protected after they have possessed the property
    in good faith for a set period of time. The Kingdom of Spain
    argues in an amicus brief that “[t]he hypothetical
    enforcement of the laws of another state to determine the
    validity of the title of ownership of a property purchased by
    a Spanish person under a contract of sale entered in Spain,
    on a property located in Spain, . . . would unduly infringe on
    the interest of the Kingdom of Spain in legislating on the
    ownership of property located in its territory.” In this case,
    for instance, Spain relied on the principle of acquisitive
    prescription in requiring a security pledge from the Baron
    CASSIRER V. TBC                      21
    that extended only for the three-year acquisitive prescription
    period set forth in Article 1955 of the Spanish Civil Code.
    Cassirer IV, 824 F. App’x at 457.
    California also has a legitimate interest in the application
    of its law and policy in this case. Generally, California
    residents have an expectation that a bona fide purchaser for
    value of movable property under a “chain of title traceable
    to the thief,” Suburban Motors, 218 Cal. App. 3d at 1357,
    does not have title to that property, id. at 1359, “because a
    thief cannot transfer valid title,” Naftzger, 42 Cal. App. 4th
    at 428. More specific to this situation, California has twice
    expressed its policy interest in personal property comprised
    of fine art works stolen by the Nazis. In 2002, California
    enacted Section 354.3 of the California Code Civil of
    Procedure, which provided that any owner of “Holocaust-era
    artwork” could bring an action to recover the art from a listed
    entity in any state superior court, and extended the statute of
    limitations for bringing such a suit. Von Saher, 
    592 F.3d at 958
    . We stated that “California’s real purpose was to create
    a friendly forum for litigating Holocaust restitution claims,
    open to anyone in the world to sue a museum or gallery
    located within or without the state.” 
    Id. at 965
    . Although
    we struck down Section 354.3 as preempted under the
    Executive Branch’s foreign affairs authority, 
    id. at 968
    , we
    acknowledged that “California certainly has a legitimate
    interest in regulating the museums and galleries operating
    within its borders, and preventing them from trading in and
    displaying Nazi-looted art,” 
    id. at 965
    . After we invalidated
    Section 354.3 on field preemption grounds, California
    immediately enacted Section 338(c)(3)(A) of the California
    Code of Civil Procedure, which extended the statute of
    limitations to bring an action to recover “a work of fine art”
    in an action “brought against a museum, gallery, auctioneer,
    22                          CASSIRER V. TBC
    or dealer, in the case of an unlawful taking or theft . . .
    including a taking or theft by means of fraud or duress.” Cal.
    Code Civ. Proc. § 338(c)(3)(A). Indeed, we previously
    noted that California’s creation of “a specific statute of
    limitations for cases involving an unlawful taking or theft of
    fine art” was evidence of California’s “strong interest in
    protecting the rightful owners of fine arts who are
    dispossessed of their property.” Cassirer III, 
    862 F.3d at 963
    . Accordingly, California has shown it has an interest in
    enabling residents to recover stolen personal property, even
    when it is in the hands of good faith purchasers, and a
    particular interest when that stolen property is Holocaust-era
    art.8
    Because both Spain and California have legitimate
    interests in the application of their laws, we are faced with a
    true conflict.
    C
    “Because the applicable laws of [Spain] and California
    differ and each state has an interest in having its law applied
    under the circumstances of the present case, we are faced
    with a ‘true conflict,’” and therefore, “the so-called
    ‘comparative impairment’ approach” is applicable.
    McCann, 
    48 Cal. 4th at 96
    .
    8
    Because California adheres to the rule that one who acquires personal
    property under a “chain of title traceable to [a] thief” does not take good
    title to that property, Suburban Motors, 218 Cal. App. 3d at 1357, the
    dissent errs in arguing that “California cannot have a legitimate interest
    in applying its absence of law regarding adverse possession of personal
    property.” Dissent 49. Indeed, the same argument would apply to Spain,
    which does not have a real interest in applying its absence of a law that
    “stolen property remains stolen property, no matter how many years have
    transpired from the date of the theft.” Naftzger, 42 Cal. App. 4th at 432.
    CASSIRER V. TBC                      23
    A comparative impairment analysis requires courts to
    “carefully evaluate and compare the nature and strength of
    the interest of each jurisdiction in the application of its own
    law to determine which state’s interest would be more
    impaired if its policy were subordinated to the policy of the
    other state.” Id. at 96–97 (cleaned up). In conducting this
    evaluation, a court’s task “is not to determine whether the
    [foreign jurisdiction] rule or the California rule is the better
    or worthier rule, but rather to decide—in light of the legal
    question at issue and the relevant state interests at stake—
    which jurisdiction should be allocated the predominating
    lawmaking power under the circumstances of the present
    case.” Id. at 97; see also Kearney, 
    39 Cal. 4th at 124
    (describing the comparative impairment process as “an
    accommodation of conflicting state policies, attempting, to
    the extent practicable, to achieve the maximum attainment
    of underlying purpose by all governmental entities”)
    (cleaned up).
    In considering how California would apply the
    comparative impairment analysis to allocate title to stolen
    personal property, we are mindful of the distinction between
    the issues raised by tort law and those raised by property law.
    In Cassirer III, we considered this distinction and chose to
    apply the “choice of law considerations most relevant to
    property cases,” rather than tort cases. 
    862 F.3d at 962
    . We
    explained that, “[i]n contrast to torts, protection of the
    justified expectations of the parties is of considerable
    importance in the field of property,” and noted that “the
    courts of Spain would apply their own property laws to
    adjudicate TBC’s claim that it owns the Painting because
    Spain uses a law of the situs rule for movable property.” 
    Id. at 963
     (alteration in original and citations omitted).
    Therefore, Cassirer III relied on the Second Restatement of
    24                      CASSIRER V. TBC
    the Conflict of Laws’s “specialized rule for a claim of
    acquisition by adverse possession or prescription of an
    interest in chattel,” which looked to the “local law of the
    state where the chattel was at the time the transfer is claimed
    to have taken place.” 
    Id.
     (quoting Second Restatement §
    246). Continuing this distinction between personal property
    and tort law, we rejected the Cassirers’ objections to
    application of Spain’s law of the situs rule because the cases
    on which they relied were “cases in which courts have
    abolished the law of the situs rule for tort actions,” as distinct
    from the property dispute that was before us. Id. at 964
    (emphasis in original). The Supreme Court subsequently
    confirmed that this case involves “a property-law dispute.”
    Cassirer V, 142 S. Ct. at 1510.
    While federal common law provided guidance on how
    its choice-of-law rules should be applied to property cases in
    Cassirer III, 
    862 F.3d at
    960–63, California’s choice-of-law
    rules do not do so. This is because California’s application
    of the comparative impairment analysis has been largely
    limited to tort actions where a California resident, who has
    suffered a physical injury due to the negligent conduct of a
    defendant in a different jurisdiction, brings an action to
    impose liability on that defendant. See, e.g., McCann, 
    48 Cal. 4th at 95
    ; Castro v. Budget Rent-A-Car Sys., Inc., 
    154 Cal. App. 4th 1162
    , 1181–82 (2007). The parties (and the
    dissent) do not cite, nor have we found, any California cases
    applying the comparative impairment analysis to the
    question at issue here—the allocation of title to stolen
    property.
    Our review of the comparative impairment cases in the
    tort context shows they do not provide the “choice of law
    considerations most relevant to property cases.” Cassirer
    III, 
    862 F.3d at 962
    . In evaluating which state’s interest
    CASSIRER V. TBC                      25
    would be more impaired in this context, California courts
    have considered factors that are generally more applicable to
    allocating liability in tort cases as opposed to in property
    cases, including: (1) where the injurious conduct occurred;
    (2) who exposed themselves to risk in the foreign
    jurisdiction; (3) whether a law imposing liability for injury
    is antique or progressive; and (4) whether the conflicting
    interests of the jurisdictions in imposing liability can be
    accommodated.
    The most important factor in the tort context is the situs
    where the tortious conduct and physical injury occurred. In
    most cases, both occur in the same location. In McCann, the
    California Supreme Court considered a choice-of-law issue
    raised by a lawsuit filed in California by a worker injured
    due to his exposure to asbestos-containing material in
    Oklahoma. 
    48 Cal. 4th at 74
    . Applying the comparative
    impairment analysis, the California Supreme Court
    determined that because the defendant’s conduct occurred in
    Oklahoma, and the plaintiff’s exposure to asbestos and
    injury occurred in Oklahoma, Oklahoma’s interest would be
    more impaired if its laws were not applied. 
    Id. at 97
    . The
    California Supreme Court reached this conclusion even
    though the plaintiff “was a California resident when he was
    first diagnosed with an asbestos-related disease and when he
    incurred medical expenses in this state as a result of the
    disease.” 
    Id. at 101
    .
    In the rare cases where the tortious conduct occurred
    outside of California, but the physical injury to the California
    resident occurred in California, California courts have
    looked to the law of the place where the injury occurred. For
    instance, when a California resident was injured on a
    California highway by a driver who had become drunk while
    drinking at a Nevada tavern, the California Supreme Court
    26                      CASSIRER V. TBC
    determined that California law, which imposed civil liability
    on tavern keepers, was applicable. Bernhard v. Harrah’s
    Club, 
    16 Cal. 3d 313
    , 319–20, 322–23 (1976). Although
    “each of the states involved ha[d] a legitimate but conflicting
    interest in applying its own law in respect to the civil liability
    of tavern keepers,” the California Supreme Court held that
    California’s interest—“to prevent tavern keepers from
    selling alcoholic beverages to obviously intoxicated persons
    who are likely to act in California”—would be more
    impaired if its policy were subordinated to Nevada’s. 
    Id. at 320, 322
    .
    California courts also consider whether an injured party
    took the risk of exposure to another jurisdiction’s rules. In a
    case involving a California resident who was injured in
    Alabama, a California court of appeal held that Alabama’s
    law applied, because “Alabama’s interest in allocating
    liability and deterring negligent driving within its borders
    would be more impaired by the application of California’s
    permissive user statute than would California’s interests if
    Alabama law is applied.” Castro, 154 Cal. App. 4th at 1182.
    The court further explained that, “by entering and driving in
    Alabama, [the California resident] voluntarily exposed
    himself to the risks of that territory, and should not expect to
    subject [the Alabama defendant] to a financial hazard that
    Alabama law had not created.” Id. (internal quotation marks
    omitted).
    In considering which jurisdiction’s interest in imposing
    liability for tortious conduct is more impaired by the
    application of the other jurisdiction’s laws, California courts
    also evaluate whether a law imposing liability for injury is
    archaic and rarely enforced. For example, in Offshore
    Rental Co. v. Cont’l Oil Co., a California statute gave an
    employer a cause of action for negligent injury to a “key”
    CASSIRER V. TBC                      27
    employee. 
    22 Cal. 3d 157
    , 160 (1978). A California
    employer relied on that statute to sue a Louisiana company
    for negligently injuring its employee on the defendant’s
    premises in Louisiana. 
    Id.
     In addition to noting that the
    location of the employee’s injury was in Louisiana, the
    California Supreme Court also considered that California’s
    interests would not be significantly impaired, because the
    California statute at issue was “antique.” 
    Id. at 166
    .
    Offshore Rental then explained that an antique statute “may
    be infrequently enforced or interpreted even within its own
    jurisdiction, and, as an anachronism in that sense, should
    have a limited application in a conflicts case.” 
    Id.
     Applying
    this principle, the California Supreme Court stated that
    “California has itself exhibited little concern in applying [the
    law at issue] to the employer-employee relationship: despite
    the provisions of the antique statute, no California court has
    heretofore squarely held that California law provides an
    action for harm to business employees, and no California
    court has recently considered the issue at all.” 
    Id. at 167
    .
    Accordingly, Offshore Rental concluded that a law that is
    “archaic and isolated . . . may not unreasonably have to yield
    to []a more prevalent and progressive law.” 
    Id. at 165
    .
    Finally, the California Supreme Court has made efforts
    to accommodate the conflicting interests of the jurisdictions
    in protecting their respective residents from liability for a
    personal injury. For instance, in Kearney, California
    plaintiffs brought suit against a Georgia-based company that
    secretly recorded their telephone calls. 
    39 Cal. 4th at 99
    .
    The plaintiffs alleged that the recording caused an injury by
    violating their rights under a California privacy statute. 
    Id.
    at 106–08. The California Supreme Court, conducting a
    comparative impairment analysis, stated that the failure to
    apply California law would impair California’s interest more
    28                     CASSIRER V. TBC
    severely, because it would not affect any Georgia privacy
    interest, and Georgia companies could readily comply with
    California requirements. 
    Id.
     at 126–28. Nevertheless, in
    order “to maximize each affected state’s interest to the extent
    feasible in the present context,” the California Supreme
    Court decided “to restrain the application of California law
    with regard to the imposition of liability for acts that have
    occurred in the past, in order to accommodate Georgia’s
    interest in protecting persons who acted in Georgia in
    reasonable reliance on Georgia law from being subjected to
    liability on the basis of such action.” 
    Id. at 128
    . Therefore,
    the California plaintiff could seek only “injunctive relief to
    require [the Georgia company] to comply with California
    law in the future,” while Georgia law would apply with
    respect to the Georgia company’s “potential monetary
    liability for its past conduct.” 
    Id. at 130
    .
    The comparative impairment factors considered in these
    cases involving physical injuries to California residents are
    not readily applicable to cases involving disputes over who
    holds title to stolen property. First, the primary factors in
    California’s comparative impairment analysis in tort cases
    involving an injured plaintiff—the situs where the tortious
    conduct occurred and the situs where the physical injury
    occurred—provide little guidance in a case like this one. If
    TBC is entitled to “a claim of acquisition by adverse
    possession or prescription of an interest in chattel,” Cassirer
    III, 
    862 F.3d at 963
    , then TBC did not engage in any tortious
    conduct in Spain or elsewhere. The question, as we
    recognized in Cassirer III, is one of title to personal
    property, not one of physical injury to person. 
    Id.
     And the
    Cassirers did not suffer any physical injury, although the
    Cassirers may feel the impact of the deprivation of the
    Painting in California. For the same reason, considerations
    CASSIRER V. TBC                     29
    regarding whether the parties exposed themselves to the
    risks of the foreign jurisdiction, which make sense in a
    physical injury case, are not applicable here: the Cassirers
    did not expose themselves to the risk of having stolen
    property in Spain, and Spain did not expose itself to the risk
    that a person victimized by the theft of that property would
    reside in California. Cf. McCann, 
    48 Cal. 4th at
    100 (citing
    Castro, 154 Cal. App. 4th at 1182).
    And even though the question whether the law at issue is
    antique or progressive may be applicable in the property
    context, this factor is not helpful here. The Cassirers argue
    that Spain’s acquisitive prescription statute should yield to
    Section 338(c)(3)(A), which was enacted in 2010 and was
    specifically aimed at assisting in the recovery of art stolen
    by the Nazis. But the California law relevant to the
    comparative impairment analysis is not Section
    338(c)(3)(A), which merely extends the time in which a
    victim of theft can bring a lawsuit, but rather the rule that
    thieves cannot pass good title, and that even an innocent
    purchaser who acquired a chattel under a “chain of title
    traceable to the thief” does not have title to that property.
    Suburban Motors, 218 Cal. App. 3d at 1357. Both Spain’s
    acquisitive prescription law (which was enacted in 1889 and
    has not been amended since), see Cassirer III, 
    862 F.3d at 967
    , and California’s common law rule, see Crocker Nat’l
    Bank, 
    178 Cal. at 332
     (decided in 1918), are equally
    “antique,” Offshore Rental, 
    22 Cal. 3d at 166
    . Yet neither
    jurisdiction has shown any lack of interest in seeing its own
    law applied. To the contrary, both California and the
    Kingdom of Spain filed amicus briefs expressing their strong
    interests in the application of their respective laws to this
    30                          CASSIRER V. TBC
    dispute.9 See Wash. Mut. Bank, FA v. Superior Ct., 
    24 Cal. 4th 906
    , 920 (2001) (stating that courts should consider “the
    relative commitment of the respective states to the laws
    involved” in conducting a comparative impairment
    analysis).
    Finally, there is no obvious way to accommodate the
    conflicting interests of the jurisdictions in this context,
    because California’s interest in protecting its residents
    whose property was stolen is irreconcilable with Spain’s
    interest in protecting its residents who acquire title to
    property via acquisitive prescription. For instance, the
    decision to apply California’s law prospectively only, the
    choice-of-law solution adopted by the California Supreme
    Court in Kearney, 
    39 Cal. 4th at 130
    , is not viable here:
    regardless which law applies, one party with an ownership
    interest in property will be deprived of that interest, under
    any scenario.
    D
    In short, the existing California caselaw applying the
    comparative impairment analysis to tortious, and typically
    physical, injuries does not provide guidance in the context of
    property law, where it is necessary to determine which
    jurisdiction’s interests will be more impaired when the issue
    is one of allocating title to stolen personal property.10
    9
    California “asserted its strong interest in seeking justice for art theft
    victims,” while the Kingdom of Spain has also expressed a germane
    policy “interest . . . in legislating on the ownership of property located in
    its territory.”
    10
    Our decisions applying California law are likewise silent on this issue.
    We have applied California’s governmental interest test to property
    CASSIRER V. TBC                        31
    Neither the parties nor we have found any California
    Supreme Court or state court of appeal case applying the
    governmental interest test to disputes involving the
    ownership of stolen personal property or the application of
    adverse possession law to determine ownership. There is no
    controlling precedent explaining how a court should
    determine which state’s interest would be more impaired if
    its policy were subordinated to the policy of the other state
    regarding the ownership of stolen property. The factors
    previously considered by California courts provide
    insufficient guidance in determining whether California’s
    interest in protecting the right of California residents to
    obtain the return of property that has been stolen, or Spain’s
    interest in protecting the expectations of its residents that
    they obtain title by adverse possession after sufficient time
    has passed, would be more impaired by the application of the
    other jurisdiction’s law. Nor is there any obvious way to
    accommodate the interests of both jurisdictions.
    Although California has codified a choice-of-law
    provision relating to personal property, see 
    Cal. Civ. Code § 946
    , this likewise sheds no light on the dispute before us.11
    Section 946 of the California Civil Code states that, “[i]f
    disputes, but have not addressed the comparative impairment analysis.
    See, e.g., CRS Recovery, 
    600 F.3d at
    1142–43 (concluding, in case
    involving an action for theft and conversion of internet domain names,
    that there was no conflict between California and Virginia law as to
    whether domain names are intangible property subject to conversion
    claims); Love v. Associated Newspapers, Ltd., 
    611 F.3d 601
    , 610 (9th
    Cir. 2010) (holding that there was no conflict between the law of
    California and England because “[n]one of the parties remaining in this
    suit is a citizen of California” and the injurious conduct in the suit
    “occurred almost exclusively in the United Kingdom and Ireland”).
    11
    The parties have not addressed Section 946 on appeal.
    32                     CASSIRER V. TBC
    there is no law to the contrary, in the place where personal
    property is situated, it is deemed to follow the person of its
    owner, and is governed by the law of his domicile.” 
    Cal. Civ. Code § 946
    . On its face, this section does not provide
    applicable guidance, because both the Cassirers and TBC
    claim a valid ownership interest in the Painting. Nor have
    California courts addressed how Section 946 interacts with
    the governmental interest test, or how it might apply to a
    dispute over ownership of stolen property. The California
    Supreme Court cases that mention Section 946 almost
    uniformly involve matters of family law, such as probate and
    succession, see Est. of Griswold, 
    25 Cal. 4th 904
    , 920 n.8
    (2001), In re Burnison’s Est., 
    33 Cal. 2d 638
    , 640 (1949),
    and divorce, see Smith v. Smith, 
    45 Cal. 2d 235
    , 242 (1955).
    III
    In light of the foregoing discussion, and because the
    answer to this question “could determine the outcome of a
    matter pending in [this] court,” Cal. R. Ct. 8.548(a), we
    respectfully certify to the California Supreme Court the
    following question:
    Whether, under a comparative impairment
    analysis, California’s or Spain’s interest is
    more impaired if California’s rule that a
    person may not acquire title to a stolen item
    of personal property (because a thief cannot
    pass good title, and California has not
    adopted the doctrine of adverse possession
    for personal property), were subordinated to
    Spain’s rule that a person may obtain title to
    stolen property by adverse possession.
    CASSIRER V. TBC                      33
    We do not intend our framing of this question to restrict
    the California Supreme Court’s consideration of any issues
    that it determines are relevant. If the California Supreme
    Court decides to consider the certified question, it may in its
    discretion reformulate the question. Broad v. Mannesmann
    Anlagenbau AG, 
    196 F.3d 1075
    , 1076 (9th Cir. 1999). The
    answer to this question will resolve the appeal before us,
    because if California law applies, the Cassirers would have
    a superior ownership interest in the stolen Paining, while if
    Spanish law applies, TBC would have acquired ownership
    of the Painting through acquisitive prescription before the
    Cassirers brought their lawsuit. We agree to accept and
    follow the California Supreme Court’s decision on this
    question. See Cal. R. Ct. 8.548(b)(2).
    We are perplexed by the dissent’s repeated accusations
    that certifying a question to the California Supreme Court is
    “improper,” Dissent 52, 63, would “deplete our reservoir of
    comity,” Dissent 64, and encourage forum shopping.
    Dissent 65. We recognize, as we must, that the United States
    Supreme Court has directed us to apply California’s choice-
    of-law rule, and has stated that doing so might “lead to the
    application of California property law.” Cassirer V, 142 S.
    Ct. at 1509. We are thus bound to apply California’s choice-
    of-law rule, and for the reasons explained above, we are
    uncertain as to what rule of decision that application would
    produce in this context. Under such circumstances,
    considerations of comity and federalism compel us not to
    substitute our judgment for that of the state’s highest court
    on an unsettled issue of state law, but rather to “seek
    guidance from the California Supreme Court, which remains
    the primary expositor of California law.” Allied Premier Ins.
    v. United Fin. Cas. Co., 
    991 F.3d 1070
    , 1076 (9th Cir. 2021)
    (cleaned up). The dissent’s concern that we should not
    34                      CASSIRER V. TBC
    certify a legal question because the “Cassirers’ counsel
    candidly told us: ‘We want you to certify because we are
    pretty confident [about] what the California Supreme Court
    is going to do’” is misplaced. Dissent 65. Our task is to
    ensure the correct application of California law, whether or
    not the California Supreme Court issues a ruling favorable
    to the Cassirers.
    If the California Supreme Court accepts review of the
    certified question, we designate Appellants David Cassirer,
    the Estate of Ava Cassirer, and the United Jewish Federation
    of San Diego County as the petitioners pursuant to California
    Rule of Court 8.548(b)(1).
    The clerk of our court is hereby ordered to transmit
    forthwith to the California Supreme Court, under official
    seal of the United States Court of Appeals for the Ninth
    Circuit, a copy of this order and all relevant briefs and
    excerpts of record, along with a certificate of service on the
    parties. Cal. R. Ct. 8.548(c), (d).
    Further proceedings in our court are stayed pending the
    California Supreme Court’s decision on whether it will
    accept review, and if so, receipt of the answer to the certified
    question. This case is withdrawn from submission until
    further order from this court. The Clerk is directed to
    administratively close this docket, pending further order.
    The panel will resume control and jurisdiction on the
    certified question upon receiving an answer to the certified
    question or upon the California Supreme Court’s decision to
    decline to answer the certified question. Within 14 days
    after the California Supreme Court decides whether or not to
    accept the certified question, each party shall file a report
    informing this court of the decision. If the California
    Supreme Court accepts the certified question, each party
    CASSIRER V. TBC                       35
    shall file a status report every six months after the date of the
    acceptance, or more frequently if circumstances warrant.
    It is so ORDERED.
    BEA, Circuit Judge, dissenting:
    In 1939, the Nazis stole the Rue St. Honoré, après midi,
    effet de pluie (“Painting”) from the Cassirer family. Through
    a series of transactions, the Painting wound up in the
    possession of Baron Hans Heinrich Thyssen-Bornemisza
    (“Baron”). The Baron, in turn, sold the Painting to the
    Thyssen-Bornemisza Collection Foundation (“TBC”) in
    1993. TBC publicly displayed the Painting in its museum in
    Madrid, Spain, where it remains today. The Cassirers
    learned of the Painting’s location in 2000, filed an
    unsuccessful petition for its return in Spain in 2001, and filed
    the instant suit against TBC in the United States District
    Court for the Central District of California in 2005.
    Twelve years later, consistent with our Circuit’s
    precedent, we applied federal choice of law principles to
    conclude that Spanish property law governs this dispute.
    Cassirer v. Thyssen-Bornemisza Collection Found.
    (Cassirer III), 
    862 F.3d 951
     (9th Cir. 2017). After we
    remanded for a bench trial, the district court found that the
    Baron did not possess the Painting in good faith and thus did
    not pass title to TBC. Cassirer v. Thyssen-Bornemisza
    Collection Found., No. CV-05-3459, 
    2019 WL 13240413
    , at
    *15 (C.D. Cal. Apr. 30, 2019). But it further found that TBC
    had no knowledge of the theft and therefore obtained new
    prescriptive title by satisfying the requirements for adverse
    36                          CASSIRER V. TBC
    possession under Spanish law. 
    Id.
     at *19–24. We affirmed
    the district court’s factual findings. Cassirer v. Thyssen-
    Bornemisza Collection Found. (Cassirer IV), 
    824 F. App’x 452
     (9th Cir. 2020). Thus, the sole theory under which TBC
    may now claim title to the Painting is through prescriptive
    title, gained by adverse possession. TBC no longer claims
    that title passed to it from the Baron, nor through any of the
    Baron’s predecessors in title, including the Nazi thieves.1
    Recently, the Supreme Court remanded this case for us
    to apply California, rather than Federal, choice of law
    principles. Cassirer v. Thyssen-Bornemisza Collection
    Foundation (Cassirer V), 
    142 S. Ct. 1502 (2022)
    .
    California’s choice of law test, sometimes called the
    “governmental interest analysis,” proceeds in three steps.
    Kearney v. Salomon Smith Barney, Inc., 
    137 P.3d 914
    , 922
    (Cal. 2006).
    First, the court determines whether the
    relevant law of each of the potentially
    affected jurisdictions with regard to the
    particular issue in question is the same or
    different. Second, if there is a difference, the
    court examines each jurisdiction’s interest in
    the application of its own law under the
    circumstances of the particular case to
    determine whether a true conflict exists.
    Third, if the court finds that there is a true
    conflict, it carefully evaluates and compares
    the nature and strength of the interest of each
    1
    TBC repeatedly concedes that “Spain does not have an interest in
    protecting receivers of stolen property” in its briefing. Dkt. No. 88 at 2,
    10.
    CASSIRER V. TBC                       37
    jurisdiction in the application of its own law
    to determine which state's interest would be
    more impaired if its policy were subordinated
    to the policy of the other state, and then
    ultimately applies the law of the state whose
    interest would be the more impaired if its law
    were not applied.
    
    Id.
     (emphasis added) (cleaned up).
    Rather than apply this analysis itself, the majority asks
    the California Supreme Court to do so. I must respectfully
    dissent from the majority’s certification order because, in my
    view, application of this legal test to the facts of this case is
    straightforward. I first explain why that is so and then turn
    to the majority’s errors in reaching a contrary conclusion.
    I.
    We must analyze only the “relevant law” of each
    jurisdiction “under the circumstances of the particular case
    to determine whether a true conflict exists.” Kearney, 
    137 P.3d at 922
    . Here, we have already affirmed the district
    court’s finding that TBC did not obtain title to the Painting
    through its 1993 purchase from the Baron. Our task is
    therefore quite simple: We must apply the governmental
    interest analysis to determine whether the laws of Spain or
    California regarding the creation and vesting of prescriptive
    title through adverse possession of personal property govern
    this dispute.
    Spanish law regarding acquisition of title through
    adverse possession of personal property is easy to discern.
    See Cassirer III, 
    862 F.3d at 965
    . Spanish Civil Code Article
    1955 (“Article 1955”) provides: “Ownership of movable
    property prescribes by three years of uninterrupted
    38                      CASSIRER V. TBC
    possession in good faith. Ownership of movable property
    also prescribes by six years of uninterrupted possession,
    without any other condition.” 
    Id.
     (citation omitted). As we
    previously held in Cassirer III and Cassirer IV, application
    of Article 1955 to the facts found by the district court clearly
    results in TBC being vested with title to the Painting.
    But whether California law would produce a similar
    result has been an open question for the past century.
    Adopted in 1872, the California Civil Code provides five
    means by which title to real or personal property may be
    acquired: (1) occupancy; (2) accession; (3) transfer; (4) will;
    and (5) succession. 
    Cal. Civ. Code § 1000
    . The word
    “occupancy” is a term of art that means “by prescription.”
    See Hansen v. Sandridge Partners, L.P., 
    232 Cal. Rptr. 3d 247
    , 255–56 (2018) (“When title is acquired by occupancy,
    it is called title by ‘prescription.’” (citing Cal. Civ. Code, §
    1007)). The word “occupancy” is not limited to the
    “occupancy” of real property; it also refers to possession of
    personal property. See 51 Cal. Jur. 3d Property § 32
    (explaining that title to personal property, as in “property,
    generally, may be acquired by occupancy, accession,
    transfer, will, or succession.”). This is important because
    California Civil Code § 1007 provides: “Occupancy for the
    period prescribed by the Code of Civil Procedure as
    sufficient to bar any action for the recovery of the property
    confers a title thereto, denominated a title by prescription,
    which is sufficient against all . . . .” (emphasis added).
    By their plain terms, these provisions “would seem to
    establish the right to acquire title to personal property by
    adverse possession . . . .” 13 C. Witkin, Summary of
    California Law, Personal Property § 133 (11th ed. 2022). But
    beginning in 1925, California cases began to “cast some
    doubt upon this conclusion.” Id. In San Francisco Credit
    CASSIRER V. TBC                      39
    Clearing House v. Wells (Wells), the California Supreme
    Court was asked to determine whether section 1007 applies
    to personal property. 
    239 P. 319
    , 322 (Cal. 1925). It declined
    to answer. “The evidence . . . being obviously insufficient to
    support a title of adverse possession or prescription,
    render[ed] it unnecessary to consider” the question. 
    Id.
     And
    unresolved that question has remained. California courts
    have declined to answer this question ever since. See Soc’y
    of Cal. Pioneers v. Baker (Baker), 
    50 Cal. Rptr. 2d 865
    , 872
    n.13 (Cal. Ct. App. 1996) (declining to resolve this
    question); Bufano v. City & Cnty. of San Francisco, 
    43 Cal. Rptr. 223
    , 230 (Cal. Ct. App. 1965) (same). Thus, whether
    “personal property may be the subject of adverse
    possession . . . has never been squarely answered” in
    California, 54A Cal. Jur. 3d Real Estate § 764, and is an
    issue that “does not appear to be settled.” Baker, 
    50 Cal. Rptr. 2d at
    872 n.13. This backdrop renders our application
    of the governmental interest test relatively straightforward.
    Where one jurisdiction (Spain) has taken a clear stance
    on the applicability of a doctrine—here, acquisition of
    prescriptive title to personal property by adverse
    possession—but the other has not (California), there is a
    “false conflict.” See Blizzard Energy, Inc. v. Schaefers, 
    286 Cal. Rptr. 3d 658
     (Cal. Ct. App. 2021), rev. denied (Feb. 16,
    2022). False conflicts are easy to resolve. “When one of two
    states related to a case has a legitimate interest in the
    application of its law and policy and the other has none, there
    is no real problem; clearly the law of the interested state
    should be applied.” Hurtado v. Superior Ct., 
    522 P.2d 666
    ,
    670 (Cal. 1974).
    For instance, in Blizzard Energy, a judgment was entered
    against Bernd Schaefers in his individual capacity in a
    Kansas court. 286 Cal. Rptr. 3d at 665–66. Schaefers and his
    40                          CASSIRER V. TBC
    wife owned a limited liability company, “BKS Cambria,”
    but neither Schaefers’s wife nor BKS Cambria were parties
    to the Kansas action. Id. at 665. The plaintiff entered the
    Kansas judgment in California, where it was amended to
    include BKS Cambria under California’s “outside reverse
    veil piercing doctrine.” Id. (cleaned up).2 Defendants
    appealed, arguing that the California court should have
    applied Kansas law, which they contended “does not
    recognize the outside reverse veil piercing doctrine.” Id. at
    677. In support, they cited only one case. Id. That case had
    declined to determine whether Kansas would recognize that
    doctrine because Kansas courts had articulated no “clear
    statement” rejecting or adopting it. Id. (citing Floyd v. I.R.S.
    U.S., 
    151 F.3d 1295
     (10th Cir. 1998)). Since Kansas had
    neither accepted nor rejected the doctrine of outside reverse
    veil piercing, the California Court of Appeal in Blizzard
    Energy concluded that Kansas had no legitimate interest
    regarding the application of that doctrine. 
    Id.
     It thus found a
    “false conflict” and applied the law of the only state to
    articulate a clear position on outside reverse veil
    piercing—California. 
    Id.
    So too here. Spain expressly recognizes that adverse
    possession creates and vests title to personal property under
    Article 1955, Cassirer III, 
    862 F.3d at 958, 966
    , and Spain
    has an obvious interest in applying Article 1955 to regulate
    the possession and ownership of personal property within
    its borders, see McCann v. Foster Wheeler LLC, 
    225 P.3d 2
    Unlike the traditional veil-piercing doctrine (which allows a plaintiff to
    recover from an individual owner of a defendant legal entity), the
    “outside reverse veil piercing” doctrine allows a plaintiff to recover from
    a legal entity of which an individual defendant is an insider. Blizzard
    Energy, 286 Cal. Rptr. 3d at 840.
    CASSIRER V. TBC                             41
    516, 534 (Cal. 2010) (“A jurisdiction ordinarily has the
    predominant interest in regulating conduct that occurs within
    its borders.”). But California has repeatedly declined to
    address the issue of the creation of prescriptive title to
    personal property acquired through adverse possession for
    the past century, see Wells, 239 P. at 322, and thus does not
    have a legitimate interest in applying its absence of law on
    this topic, see Blizzard Energy, 286 Cal. Rptr at 677. Spain
    is the only interested jurisdiction and therefore its law
    applies. This is a simple, straightforward analysis that
    requires no certification to the California Supreme Court.3
    II.
    The majority makes a number of unfounded and puzzling
    assumptions to evade this commonsense conclusion.
    A.
    On step one, the majority obfuscates what or which
    California “law” it believes conflicts with Article 1955.
    It begins by claiming that California has clear law in this
    area: “[U]nder the laws of California, a person may not
    acquire title to a stolen item of personal property . . . .” Order
    at 5 (emphasis added). Yet when confronted with
    California’s noncommittal caselaw as to prescriptive
    acquisition of title to chattels through adverse possession,
    the majority concedes “that this is an undecided area of
    3
    What the majority order lacks in legal reasoning, it makes up for in
    adjectival deprecation. It characterizes this analysis as “elaborate,”
    “cryptic,” and “attenuated.” Order at 17–18. My analysis is actually quite
    simple: Spain has stated a position on the determinative issue here, but
    California has not; therefore, under Blizzard Energy, Spain has an
    interest in applying its law and California does not. Is that truly so
    complicated?
    42                        CASSIRER V. TBC
    California law” that supposedly requires us “to ask the
    California Supreme Court to weigh in . . . .” Order at 18. The
    careful reader will notice that the majority tries to get it both
    ways: California law regarding adverse possession of
    personal property is clear when the majority is defining the
    scope of the conflict (so that the majority can reach a true
    conflict under the governmental interest test), but that same
    area of California law is suddenly “undecided” when the
    majority is pressed on its reasoning (so that the majority can
    further justify its certification order). The majority cannot
    have it both ways. Either California does or does not have a
    clearly stated policy interest regarding the creation of
    prescriptive title to personal property through adverse
    possession.
    The majority sub silentio concludes that it does. Contrary
    to the majority’s acknowledgment that this an “undecided
    area of California law,” Order at 18, and contrary to its self-
    proclaimed reticence to “substitute [its] independent
    judgment for that of the state’s highest court,” Order at 33,
    the majority takes upon itself to resolve this century-old
    question on California’s behalf.4 It argues that the doctrine
    of adverse possession is fundamentally inconsistent with
    California’s rule that thieves “obtain[] no title as against the
    true owner,” Order at 13 (citation omitted), which I shall call
    the “no-title-passes-through-theft rule.” That won’t work.
    The no-title-passes-through-theft rule simply means that
    “good title cannot pass from a thief,” Suburban Motors, Inc.
    4
    The majority justifies its assumptions about California law by citing
    policy concerns articulated in a New Jersey case and in law review
    articles. Order at 15 n.4. But the weighing of various policy concerns
    regarding property rights is the province of the California Legislature
    and California state courts, not a federal court.
    CASSIRER V. TBC                      43
    v. State Farm Mut. Auto. Ins. Co., 
    218 Cal. App. 3d 1354
    ,
    1359 (Ct. App. 1990), because “no one gives what he does
    not have.” Cassirer III, 
    862 F.3d at
    961 n.8. It means that
    one is not divested of title to property “by the theft thereof,”
    and that the “mere possession, unaccompanied by other
    circumstances giving it a specific character, is not such
    evidence of ownership as to prevail against the true
    owner . . . .” 51 Cal. Jur. 3d Property § 15 (emphasis added).
    It means nothing more. This rule is not the “relevant law” of
    California, see Kearney, 
    137 P.3d at 922
    , because it does not
    conflict with Article 1955. TBC’s claim to the Painting is
    through new prescriptive title created by operation of law by
    adverse possession, not through chain of title tracing back to
    the Nazi thieves.
    Indeed, Spain has a similar rule to California’s “no-title-
    passes-through theft” rule. Spain allows “any person who
    has lost movable property or has been deprived of it illegally
    [to] claim it from its possessor.” Cassirer III, 
    862 F.3d at
    961
    n.8. We have already said this rule is “similar” to the no-
    title-passes-through-theft rule. 
    Id.
     And, practically speaking,
    both have already been applied to this case because no one
    claims passage of title through a thief or a thief’s successors
    in interest. Application of these rules simply means that TBC
    did not obtain title from the Baron, which is precisely what
    the district court has already found as a factual matter. That
    finding is not challenged now.
    Moreover, under either Spanish or California law, the
    fact that thieves cannot pass title says nothing about whether
    new prescriptive title can be created by operation of law
    through the mechanism of adverse possession.
    Notwithstanding Spain’s rule precluding thieves from
    passing title, we held that TBC’s satisfaction of the elements
    listed in Article 1955 could create new prescriptive title in a
    44                          CASSIRER V. TBC
    mere possessor by operation of Spanish law. Cassirer III,
    
    862 F.3d at 958, 966
    . Similarly, under California real estate
    law, adverse possession terminates the prior owner’s title
    and establishes new title in the adverse possessor by
    operation of law.5 Adverse possession creates and vests new
    prescriptive title to realty in a qualified possessor even
    though title never legitimately passed from a previous
    owner.6 That is the entire point of adverse possession. Thus,
    the fact that California law does not allow title to pass from
    thieves is irrelevant to the choice of law question before us.
    TBC no longer contends that title to the Painting passed from
    5
    See, e.g., City & Cnty. of San Francisco v. Fulde, 
    37 Cal. 349
    , 352
    (1869) (“[A]dverse possession is the means by which the former title is
    extinguished, and a new one created.”); Marriage v. Keener, 
    31 Cal. Rptr. 2d 511
    , 514 (Cal. Ct. App. 1994) (“Fee simple title vests in the
    adverse possessor by operation of law at the moment the requisite
    conditions for adverse possession have been established for the statutory
    period.” (emphasis added) (citation omitted).
    6
    More specifically, California recognizes adverse possession “under
    either color of title or claim of right.” Dimmick v. Dimmick, 
    374 P.2d 824
    , 826 (Cal. 1962) (In Bank). “There is no good faith requirement for
    adverse possession based on a claim of right.” Aguayo v. Amaro, 
    153 Cal. Rptr. 3d 52
    , 59 (Cal. Ct. App. 2013). Under claim of right theory,
    occupancy can be satisfied through “deliberate trespass,” 
    id.
     which
    means that a “usurper” can create and vest prescriptive title in himself
    “by bow and spear without color of title.” Kimball v. Lohmas, 
    31 Cal. 154
    , 159 (1866). “The title conferred by occupancy is not factually
    inconsistent with the crime of trespass” because “an adverse possessor is
    merely a trespasser, i.e., a person who enters on the land of another with
    the specific intent of injuring, interfering with or obstructing that other
    person’s property rights.” People v. Lapchesk, 
    86 Cal. Rptr. 2d 565
    , 567–
    68 (Cal. Ct. App. 1999). Thus, the fact that an adverse possessor engages
    in criminal conduct means only that title did not pass from the rightful
    owner. It has no bearing on whether new prescriptive title has been
    created by operation of law through adverse possession, which is the
    question before us here.
    CASSIRER V. TBC                            45
    the Baron. It argues that new prescriptive title was created
    by operation of law through adverse possession. For the
    purposes of this case, Article 1955 and California’s no-title-
    through-theft rule are ships passing in the night—they
    simply do not conflict.
    The majority creatively, but without authority, enlarges
    the scope of the no-title-through-theft rule to conclude
    otherwise. It cites dicta from Naftzger v. American
    Numismatic Society, which states that California “law
    imposes a continuing affirmative duty to restore stolen
    property to its rightful owner” and that “[s]tolen property
    remains stolen property, no matter how many years have
    transpired from the date of the theft.” 
    49 Cal. Rptr. 2d 784
    ,
    791 (Cal. Ct. App. 1996), as modified on denial of reh’g
    (Mar. 4, 1996). The majority interprets this language to mean
    that California law vests victims of theft with indefeasible
    title that trumps any and all future claims to title, no matter
    the circumstances. See Order at 5, 22 n.8, 32. That is a
    remarkable misreading of Naftzger.7
    7
    In Naftzger, a thief stole coins from a museum sometime before 1970,
    swapping them with fakes. 
    49 Cal. Rptr. 2d at 787
    . In December 1990,
    the museum learned that the thief had sold the coins to Roy Naftzger, an
    innocent purchaser. 
    Id.
     at 787–88. The museum sued Naftzger in May
    1993, but the superior court sustained Naftzger’s demurrer, reasoning
    that the three-year statute of limitations commenced on the date of the
    theft. 
    Id.
     The sole question on appeal was whether the limitations period
    under California’s pre-1983 statute commenced when the coins were
    stolen or when the museum discovered Naftzger’s identity. 
    Id. at 786
    .
    The Court of Appeal held that the date of discovery commenced the
    running of the statute of limitations. 
    Id. at 793
    . Although the date of
    injury generally commences the statute of limitations, “fraudulent
    concealment,” such as swapping coins with fakes, “provides an
    exception to” that rule. 
    Id.
     at 788–89. 
    Id.
     And because one has little
    46                          CASSIRER V. TBC
    The snippet of Naftzger quoted by the majority discusses
    California’s ability to prosecute, under criminal law, acts of
    knowingly concealing, withholding, or reselling stolen
    property. See supra note 7. If an individual knowingly
    conceals, withholds, or resells stolen property instead of
    returning it to the rightful owner, “no matter how many years
    have transpired from the date of the theft,” California may
    prosecute that individual because each subsequent criminal
    act carries a “separate limitations period[].” 42 Cal. Rptr. 2d
    at 791. I fail to see the relevance of Naftzger’s criminal law
    dicta to this civil action. For aught that appears, California is
    not pursuing criminal charges against TBC.
    reason to sue “if he knows nothing of the identity of the wrongdoer,” the
    court concluded that the date of discovery applies. Id. at 791.
    The court further explained that California’s criminal statute of
    limitations regarding stolen property “lends support” to that
    conclusion—and this is where the majority’s favored dicta comes in. Id.
    at 791. Each act of concealing, withholding, or reselling stolen property
    carries a “separate limitations period[]” under California’s criminal
    statutes because those criminal statutes impose “a continuing affirmative
    duty to restore stolen property to its rightful owner.” Id. (citing Williams
    v. Superior Ct., 
    146 Cal. Rptr. 311
     (Cal. Ct. App. 1978) (involving a
    criminal prosecution for receiving and concealing stolen property);
    People v. Johnson, 
    35 Cal. Rptr. 883
    , 884 (Cal. Ct. App. 1963) (same));
    see also People v. Hernandez, 91 Cal. Rptr 3d 604, 608 (Cal. Ct. App.
    2009) (same). The court noted that, under California criminal law,
    “[s]tolen property remains stolen property, no matter how many years
    have transpired from the date of the theft.” Naftzger, 
    49 Cal. Rptr. 2d at 791
    . Because California may prosecute persons for subsequent acts of
    knowingly concealing, withholding, or reselling stolen property well
    beyond three years of the original theft, the court thought it reasonable
    to imply a discovery rule for civil actions under California’s pre-1983
    statute. 
    Id.
    CASSIRER V. TBC                             47
    The fact that stolen property retains its character as
    stolen property for the purpose of criminal prosecutions says
    nothing about whether title to that property, for the purposes
    of civil actions, may be created and vested by it being
    adversely possessed. Naftzger stated just that: The court
    noted the incongruence between California’s ability to
    prosecute criminal acts regarding stolen property and the
    victim’s ability to recover that property in civil actions. 
    Id. at 792
    . It expressly declined to resolve that incongruence,
    noting that there were “numerous troubling questions
    inherent in the possible myriad circumstances surrounding
    the recovery of stolen property,” including the question
    whether “a thief’s void title [is] placed beyond the reach of
    the owner’s civil lawsuit” in situations where the owner fails
    timely to sue but where the possessor remains subject to
    criminal penalties. 
    Id.
     Clearly, then, Naftzger does not
    support the majority’s theory that California law vests theft
    victims with eternal, supercharged title that trumps any and
    all future civil law claims to title, such as that created and
    vested by operation of law through adverse possession.8
    In addition to being unsupported by caselaw, the
    majority’s theory is simply illogical. To illustrate why that is
    so, consider two hypotheticals.
    8
    Even if Naftzger could be read for such a creative proposition, the
    majority omits the fact that another panel expressly disagreed with
    Naftzger’s analysis. See Baker, 
    43 Cal. App. 4th at
    783 n.10 (disagreeing
    with Naftzger because it failed to consider Wells, 239 P. at 322 (declining
    to address whether California recognizes adverse possession as to
    chattels)). To the extent this disagreement represents an intra-California
    split, that split further cements my conclusion that California has no
    coherent policy regarding whether adverse possession can create and
    vest prescriptive title to personal property.
    48                         CASSIRER V. TBC
    First, what happens when a victim fails to file an action
    to recover the personal property or damages for its
    conversion within the period allowed by the statute of
    limitations? Naftzger itself suggests an answer. It cites with
    approval New York law, which “acknowledges that the
    effect of the expiration of the statute of limitations is to vest
    title in the possessor.” 42 Cal. Rptr. 2d at 792 (citation
    omitted). How can one read Naftzger as stating that victims
    are vested with eternal, supercharged title, exempt from title
    passing through prescription, when Naftzger itself states that
    title is vested in the possessor upon expiration of the statute
    of limitations?
    Second, consider eminent domain. Assume that a chattel
    is stolen and resold. Then, a California governmental entity
    exercises its eminent domain powers to take ownership of
    the chattel from the purchaser.9 Certainly, the theft-victim
    might obtain some form of equitable restitution from the
    purchaser. But would he still have title to the chattel
    notwithstanding the sovereign’s exercise of eminent
    domain? The majority would be forced to answer “yes”
    because its theory is that California’s no-title-passes-
    through-theft rule precludes title from ever vesting in anyone
    else under any circumstances after an act of theft. Order at
    5, 22 n.8, 32. That is a rather novel and bizarre theory of
    property rights, and it finds no support in California
    precedent. Certainly, the majority cites none.
    Because the majority’s assumption about the extent of
    the no-title-passes-through-theft rule is illogical and
    9
    See City of Oakland v. Oakland Raiders, 
    646 P.2d 835
    , 839 (Cal. 1982)
    (In Bank) (“Personal property is subject to the exercise of the power of
    eminent domain . . . .”).
    CASSIRER V. TBC                              49
    unsupported by precedent, I must respectfully disagree
    regarding the scope of the conflict here. Instead, I take
    California precedent at its word: Whether or not acquisition
    of prescriptive title through adverse possession applies to
    personal property in California is an “issue [that] does not
    appear to be settled.” Baker, 
    50 Cal. Rptr. 2d at
    872 n.13
    (emphasis added). I thus reiterate that the entire conflict here
    is that Spain recognizes the creation and vesting of title to
    personal property through adverse possession, but California
    might not.
    B.
    With the majority’s error on the first step of the
    governmental interest analysis revealed, the rest of its
    analysis falls apart. Obviously, California cannot have a
    legitimate interest in applying its absence of law regarding
    adverse possession of personal property. See Blizzard
    Energy, 286 Cal. Rptr. 3d at 665–66. Perhaps realizing this
    shortcoming, the majority half-heartedly points to another
    rule that California may have an interest applying to this
    case—the extended statute of limitations in Section
    338(c)(3)(A) of the California Code of Civil Procedure.
    Order at 21–22. But even the majority doesn’t adopt this
    theory. It later concedes that section 338(c)(3)(A) is not
    “relevant to the comparative impairment analysis” here.
    Order at 29. It does seem difficult to argue that California
    could have a legitimate interest in applying law that the
    majority tabs irrelevant.10
    10
    The majority is correct to find section 338(c)(3) irrelevant. This statute
    does not conflict with Article 1955 as a matter of the law of the case and
    binding precedent. The Cassirers urged us to consider section 338(c)(3)
    50                          CASSIRER V. TBC
    and the Holocaust Expropriated Art Recovery Act (“HEAR”), see Pub.
    L. 114–308, 
    130 Stat. 1524
    , as relevant California law that we must
    compare to Article 1955. Section 338(c)(3)(A) creates an exception for
    California’s general three-year statute of limitations for commencement
    of actions seeking recovery of personal property. 
    Cal. Civ. Proc. Code § 338
    (c)(3). It applies a six-year statute of limitations for actions seeking
    recovery of works of fine art against museums, galleries, auctioneers,
    and dealers. 
    Id.
     at § 338(c)(3)(A), rather than the general three-year
    period which applies to other possessors of chattels. HEAR states
    something similar. Subject to some nuances not relevant here, it provides
    that, “[n]otwithstanding . . . any defense at law relating to the passage of
    time,” claimants may commence an action to recover Nazi-looted art
    within six years of actual discovery of the location of the art. Pub. L.
    114–308, 
    130 Stat. 1524
    .
    In 2017, we held that HEAR and Article 1955 do not conflict.
    “HEAR addresses when a suit may be commenced and creates a statute
    of limitations. . . . However, TBC’s Article 1955 defense is a defense on
    the merits: that TBC has acquired title to the Painting based on Spain’s
    property laws.” Cassirer III, 
    862 F.3d at 965
     (original emphasis deleted,
    new emphasis added). We held that HEAR applied to Plaintiffs’ claims
    and that they were timely made under that statute. 
    Id.
     at 959–60.
    Notwithstanding the application of HEAR, we held that Article 1955
    could provide a defense on the merits. 
    Id. at 965
    . In 2020, the Cassirers
    asked us to revisit these conclusions. We declined, explaining that
    Cassirer III was the “law of the case and binding precedent that we must
    follow.” Cassirer IV, 824 F. App’x at 457.
    Because HEAR does not conflict with Article 1955, neither can
    section 338(c)(3). The Cassirers concede that section 338(c)(3) simply
    “parallel[s]” HEAR. Dkt. No. 87 at 8. Contrary to the majority’s
    suggestion, then, section 338(c)(3) cannot be considered conflicting law
    as a matter of binding precedent and the law of the case doctrine. The
    California Supreme Court will be similarly bound by these principles.
    When a case ends up in California state court after a federal appellate
    ruling has been issued, California courts recognize that the federal ruling
    is binding under the law of the case doctrine. See Adams v. Pac. Bell
    Directory, 
    111 Cal. App. 4th 93
    , 97–101, 
    3 Cal. Rptr. 3d 365
    , 367–70
    CASSIRER V. TBC                               51
    Instead of identifying any actual law that California has
    an interest in applying here, the majority appears to conclude
    that California has an interest in applying some free-floating
    interest, not established by either statute or caselaw, in
    generally protecting its residents against theft. Order at 19–
    22. But, again, the governmental interest test requires the
    majority to identify an actual California law that conflicts
    with Article 1955 under the “particular circumstances” of
    this case. Bernhard v. Harrah’s Club, 
    546 P.2d 719
    , 723
    (Cal. 1976); see also Kearney, 
    137 P.3d at 922
    . Aside from
    California’s equivocation over whether to recognize that
    adverse possession creates and vests title to personal
    property, the majority cannot identify any such law. Thus,
    properly framed, the governmental interest test requires us
    to consider whether California has an interest in applying its
    lack of statute or judicial precedent on this topic.11 As
    (2003); see also Mendoza v. Fonseca McElroy Grinding Co., 
    492 P.3d 993
    , 1010 (Cal. 2021) (“While this court may restate the certified
    question . . . , we lack the power to reshape the federal litigation that
    gave rise to the question in the first instance.”); Peacock v. Cnty. of
    Orange, No. G040617, 
    2009 WL 3184564
    , at *5 (Cal. Ct. App. Oct. 6,
    2009) (unpublished) (“Thus, a federal appellate decision may establish
    the law of the case in subsequent state court proceedings in the same
    case.”).
    11
    In the majority’s view, the question could just as easily be whether
    Spain has a legitimate interest in applying its “absence of a law” that
    mirrors the dicta in Naftzger. See Order at 22 n.8 (citing 
    49 Cal. Rptr. 2d at 791
    ). But Spain’s interest is clearly in applying Article 1955 to the
    Painting, not its alleged “absence of” a criminal statute of limitations for
    concealing, withholding, or reselling stolen property. Moreover, Spain
    does have a criminal statute of limitations for property theft. See Cassirer
    III, 
    862 F.3d at 966
    . Again, that statute of limitations is irrelevant to the
    particular facts of this case because TBC is not being criminally
    prosecuted. What is more, we have already affirmed the district court’s
    52                          CASSIRER V. TBC
    explained, California does not have such an interest and
    Spain manifestly does have an interest; therefore, Spanish
    law applies on step two of the governmental interest test.
    We thus should not reach the comparative impairment
    analysis of the third step. By certifying a question that
    requires that analysis, the majority asks the California
    Supreme Court a question that is purely hypothetical, for it
    is based on a false premise: that California has an expressed
    interest in precluding the acquisition of prescriptive title to
    chattels through possession. But even were a true conflict
    somehow to exist, the majority’s certification order would
    still be improper.12
    decision that TBC is not an encubridor (an accessory after the fact),
    Cassirer IV, 824 F. App’x at 457, a conclusion that further diminishes
    the relevance of any criminal statute of limitations to the facts of this
    case.
    12
    I am puzzled by the majority’s contention that Cassirer III and
    Cassirer V demand the conclusion that a true conflict exists. Order at 15–
    16, 16 n.5.
    In Cassirer III, we did not decide whether there was a true conflict
    under California choice of law principles. We merely concluded that
    there was a conflict under Second Restatement principles. See 
    862 F.3d at
    960–64. That simply means that the laws of California and Spain are
    different, which I do not dispute. Spain has a system of prescriptive
    ownership of personal property, but California lacks any decisional law
    on the subject. That’s a difference, but not a conflict. See Blizzard
    Energy, 286 Cal. Rptr at 677.
    In Cassirer V, the Supreme Court concluded that the choice-of-law
    principles of the forum state must be applied in suits brought under the
    Foreign Sovereign Immunities Act, in part because of 
    28 U.S.C. § 1606
    ,
    which states that “the foreign state shall be liable in the same manner and
    to the same extent as a private individual under like circumstances . . . .”
    CASSIRER V. TBC                             53
    142 S. Ct. at 1508. In support of that holding, the Supreme Court offered
    the following hypothetical:
    Consider two suits seeking recovery of a painting—
    one suit against a foreign-state-controlled museum (as
    here), the other against a private museum. If the
    choice-of-law rules in the two suits differed, so might
    the substantive law in fact chosen. And if the
    substantive law differed, so might the suits’ outcomes.
    In one case, say, the plaintiff would recover the art,
    and in the other not. Contrary to Section 1606, the two
    museums would not be “liable in the same manner and
    to the same extent.”
    Id. (emphasis added) (quoting 
    28 U.S.C. § 1606
    ).
    The majority quotes one third of the sentence emphasized above to
    argue that the Supreme Court has already held that “under California law
    as it currently stands, ‘the plaintiff would recover the art’ while under
    Spanish law, the plaintiff would not.” Order at 16, 19 (quoting Cassirer
    V, 142 S. Ct. at 1508). But as clearly shown above, the Supreme Court
    merely assumed for purposes of illustration that, “if the substantive law”
    applied in two hypothetical lawsuits “differed, so might the
    [hypothetical] suits’ outcomes.” Cassirer V, 142 S. Ct. at 1508 (emphasis
    added). Indeed, the Supreme Court expressly stated that it was not
    resolving the question before us today. Id. at 1509 (“The Cassirer
    plaintiffs contend that the California rule would lead to the application
    of California property law. And they argue that under California property
    law, even a good-faith purchaser of stolen property cannot prevail
    against the rightful pre-theft owner. We do not today decide those
    questions; they remain in the hands of the lower courts.” (internal
    citations omitted) (emphasis added)). Because neither Cassirer III nor
    Cassirer V addressed this issue, I am confused by the majority’s
    argument that I violate the law of the case doctrine by concluding that a
    false conflict exists under California law. The hypothetical’s very
    language posits a case different from ours. Taking a snippet of language
    from an inapposite hypothetical is hardly a basis for claiming that the
    54                          CASSIRER V. TBC
    C.
    Even were the majority correct that this case presented a
    true conflict, it would have an obligation at least to attempt
    to apply the comparative impairment analysis. Cf. Erie R.R.
    Co. v. Tompkins, 
    304 U.S. 64
     (1938). Alas, the majority
    avoids that obligation because it worries that there is a
    distinction between “issues raised by tort law and those
    raised by property law,” Order at 23–24, pointing out that we
    Supreme Court has already recognized there is a true conflict of laws in
    this case.
    Also puzzling to me is the majority’s decision to bolster its argument
    with citations to cases “appl[ying] choice-of-law principles” in this
    situation. Order at 16–17. That is what I am doing. The majority
    apparently fails to understand that, under California’s choice of law
    principles, a mere difference in law does not create a true conflict. See,
    e.g., Reich, 432 P.2d at 730–31 (holding that, although California law
    differed from Ohio law, no true conflict existed because California had
    no interest in applying its law to the facts of the case); Hurtado, 
    522 P.2d at 670
     (same with false conflict between California and Mexico law);
    Blizzard Energy, 286 Cal. Rptr. 3d at 677 (same with false conflict
    between California and Kansas law).
    Finally, the majority is wrong to suggest that we must consider the
    interests of Spain and California in applying their bodies of law, “taken
    as a whole . . . .” Order at 15–16. Even if we previously concluded,
    applying Federal choice of law considerations, that the Second
    Restatement test required such a “taken as a whole” approach in Cassirer
    III, California’s test expressly says otherwise. Again, California choice
    of law principles require us to examine “the relevant law of each of the
    potentially affected jurisdictions with regard to the particular issue in
    question,” and to “examine[] each jurisdiction’s interest in the
    application of its own law under the circumstances of the particular case
    to determine whether a true conflict exists.” Kearney, 
    137 P.3d at 922
    (emphases added); see also Bernhard, 
    546 P.2d at 723
    .
    CASSIRER V. TBC                               55
    placed importance on that distinction in Cassirer III, 
    862 F.3d at 963
    .
    But we drew that distinction only because the Second
    Restatement provides different rules for physical injury
    cases and personal property cases. 
    Id.
     at 962–63 (“[T]he
    commentary to § 222 clarifies that in contrast to torts,
    protection of the justified expectations of the parties is of
    considerable importance in the field of property.” (cleaned
    up)). Specifically, we put near-determinative weight on the
    Second Restatement’s “specialized rule for a claim of
    acquisition by adverse possession or prescription of an
    interest in chattel.” Id. at 963. Clearly, the precise nature of
    the claim is critical to a Second Restatement choice of law
    analysis.
    Unlike the Second Restatement, however, California
    applies its general three-step governmental interest test to all
    cases unless specifically displaced by statute. McCann, 225
    P.3d at 526–27. Neither party argues that a statue applies
    here.13 Thus, there is no question that California would apply
    its “generally applicable choice-of-law principles” to this
    personal property dispute. Id. The majority’s quibble is that
    the California Supreme Court has not yet applied those
    13
    The majority suggests that Section 946 of the California Civil Code
    does not apply, even though the parties failed to address this issue in their
    briefing. Order at 31–32. On that much, at least, we can agree. That
    statute reads: “If there is no law to the contrary, in the place where
    personal property is situated, it is deemed to follow the person of its
    owner, and is governed by the law of his domicile.” 
    Cal. Civ. Code § 946
    . Because the Painting is situated in Spain, and because Spain rejects
    “the law of the domicile” rule, Cassirer III, 
    862 F.3d at 963
    , section 946
    does not mandate application of the law of the domicile. Under these
    circumstances, McCann requires us to apply the governmental interest
    test. See 225 P.3d at 526–27.
    56                           CASSIRER V. TBC
    principles to the precise facts of this case. That is not a proper
    basis for certification.14
    True, California’s comparative impairment analysis
    might be difficult to apply as a general matter. That is true
    for all applications of that test. See Arno v. Club Med Inc.,
    
    22 F.3d 1464
    , 1467 (9th Cir. 1994) (describing the test as
    “amorphous”). That a state-law test is “difficult” to apply is
    insufficient to warrant certification. Kremen v. Cohen, 
    325 F.3d 1035
    , 1037 (9th Cir. 2003). That is because “[t]here is
    always a chance that a state supreme court, if it had the same
    case before it, might decide the case differently. This ever-
    present possibility is not sufficient to warrant certification.”
    State Farm Mut. Auto. Ins. Co. v. Pate, 
    275 F.3d 666
    , 672
    (7th Cir. 2001).15 Indeed, speculation that the California
    Supreme Court might decide this case differently cautions
    against certification. See Metz v. BAE Sys. Tech. Sols. &
    Servs. Inc., 
    774 F.3d 18
    , 24–25 (D.C. Cir. 2014) (denying
    motion to certify because of forum-shopping concerns). In
    sum, if existing precedent is sufficient to “illuminate[] a
    clear path” for our analysis, Plastics Eng’g Co. v. Liberty
    Mut. Ins. Co., 
    514 F.3d 651
    , 659 (7th Cir. 2008), such that
    14
    The majority contends that this case is also distinguishable from prior
    California Supreme Court cases because most of those cases involved
    situations where “the tortious conduct and physical injury
    occurred . . . . in the same location.” Order at 25. But this situation is far
    from unique and has repeatedly been addressed in California Supreme
    Court cases. See, e.g., Kearney, 
    137 P.3d at 917
     (applying choice of law
    principles to case in which Georgia telephone calls caused injury in
    California); McCann, 25 P.2d at 520–29 (same in case where Oklahoma
    asbestos use caused mesothelioma that manifested in California).
    15
    This is precisely the spoken hope of the Cassirers here. Their counsel
    told us: “We want you to certify because we are pretty confident [about]
    what the California Supreme Court is going to do.” Oral Arg. at 20:10.
    CASSIRER V. TBC                     57
    we can “predict” the correct answer, U.S. Bank, N.A., v.
    White Horse Ests. Homeowners Ass’n, 
    987 F.3d 858
    , 867
    (9th Cir. 2021), certification should not be used.
    Here, current California Supreme Court precedent
    sufficiently illuminates a path for our analysis, allowing us
    to predict the correct answer. It explains that we must
    “carefully evaluate[] and compare[] the nature and strength
    of the interest of each jurisdiction in the application of its
    own law to determine which state’s interest would be more
    impaired if its policy were subordinated to the policy of the
    other state, and then ultimately applies the law of the state
    whose interest would be the more impaired if its law were
    not applied.” Kearney, 137 P.2d. at 922 (cleaned up). In
    particular, the California Supreme Court has articulated two
    considerations that provide substantial guidance here.
    1.
    First, we must determine whether application of one law
    results in the “maximum attainment of underlying purpose
    by all governmental entities.” Offshore Rental v. Continental
    Oil, 
    583 P.2d 721
    , 726 (Cal. 1978). Applying Article 1955
    to this dispute does so.
    Applying Article 1955, California would still have
    attained its interest in providing a friendly forum in
    California to litigate this dispute. As explained supra note
    10, we previously held that the Cassirers’ claims were
    subject to, and timely made under, the statute of limitations
    in HEAR. Cassirer III, 
    862 F.3d at 960
    . It is the law of the
    case that HEAR does not conflict with Article 1955,
    Cassirer IV, 824 F. App’x at, 455, and the Cassirers concede
    that section 338(c)(3) simply “parallel[s]” HEAR. Dkt. No.
    87 at 8. Thus, even were section 338(c)(3) relevant here to
    define California’s interests in safeguarding its residents’
    58                            CASSIRER V. TBC
    property,16 HEAR’s application to this case underscores that
    California’s interest in creating a forum in which to litigate
    personal property disputes regarding Nazi-looted art has
    been “attain[ed].” Kearney, 
    137 P.3d at 934
    . The majority
    acknowledges that the “real purpose” of section 338(c)(3)’s
    predecessor “was to create a friendly forum for litigating
    holocaust restitution claims.” Order at 21 (citation omitted).
    That is precisely what the Cassirers received here.
    Also consider California’s no-title-passes-through-theft
    rule. Again, this rule does not conflict with Article 1955. See
    supra pages 9–16. But even were it relevant here, whatever
    interest California has in applying that rule has been
    protected. Nobody was allowed to claim passage of title
    through a thief. Moreover, Spanish law makes it more
    difficult for title to vest in an “encubridor,” which means one
    who covers over, “an accessory after the fact,” see Oxford
    Spanish Dictionary 323 (3d ed. 2003), or as we have
    previously explained, someone who “knowingly receives
    and benefits from stolen property.” Cassirer III, 
    862 F.3d at 968
    . If the possessor is proven to be an encubridor, Spanish
    law extends the period of time in which the property need be
    possessed before new prescriptive title is created. 
    Id.
     But
    after “an extensive bench trial,” Order at 11, the district court
    concluded that TBC was not an encubridor because it did
    not have actual knowledge that the Painting was stolen.
    Cassirer, 
    2019 WL 13240413
    , at *20–21. We affirmed that
    finding. Cassirer IV, 824 F. App’x at 457. California’s
    interest in deterring passage of title through theft has been
    protected.
    16
    Again, the majority agrees that § 338(c)(3) is irrelevant. Order at 29.
    CASSIRER V. TBC                      59
    The majority balks at this conclusion, claiming that
    “there is no obvious way to accommodate the conflicting
    interests of the jurisdictions in this context[] because
    California’s interest in protecting its residents whose
    property was stolen is irreconcilable with Spain’s interest in
    protecting its residents who acquire title to property via
    acquisitive prescription.” Order at 30. Notably, the majority
    cites no California law that protects California residents’
    “property [that] was stolen” under the particular
    circumstances of this case. As already explained, for
    purposes of its choice-of-law rules, California cannot assert
    some free-floating hypothetical interest in generally
    protecting its residents’ property against theft. That interest
    must be tied to the application of some actual law that
    conflicts with Spanish law under these particular
    circumstances. Bernhard, 
    546 P.2d at 723
    . The truth that the
    majority strives to avoid is that declining to apply Article
    1955 would result solely in the protection of California’s
    interests, even though California’s factual connection to the
    Painting is indisputably more attenuated than is Spain’s.
    Applying Article 1955 reflects the maximum attainment of
    purpose of both California and Spain. And it is disappointing
    that the majority does not attempt this analysis.
    2.
    Second, California precedent requires us to examine the
    reliance interests the parties could have placed on the laws
    of the respective jurisdictions, starting from the premise that
    a jurisdiction has the “predominant interest in regulating
    conduct that occurs within its borders.” McCann, 225 P.3d
    at 534; see also Offshore Rental, 
    583 P.2d at 726
    ; Reich, 
    432 P.2d 727
    .
    60                        CASSIRER V. TBC
    In Reich, the court noted that “Missouri is concerned
    with conduct within her borders and as to such conduct she
    has the predominant interest of the states involved.” 432
    P.2d at 730. But Reich went on to explain that Missouri’s
    interest was diminished under the facts of that case because
    the law to be applied was merely a damages limitation that
    did nothing to change the way people “behave” within
    Missouri’s borders. Id. at 731.
    In Offshore Rental, the court noted that Louisiana had a
    “vital interest in promoting freedom of investment and
    enterprise [w]ithin Louisiana’s borders, among investors
    incorporated both in Louisiana and elsewhere.” 
    583 P.2d at 728
     (holding that Louisiana law governed a negligence
    action by a California corporation against a Louisiana
    corporation, alleging loss caused by injury to plaintiff’s
    employee, a loss that is cognizable under California law but
    not under Louisiana law). Offshore Rental considered
    whether that interest could “easily be satisfied by some
    means other than enforcement of the statute itself”—such as
    by purchasing insurance. Id. at 726. But it explained that the
    Louisiana defendant reasonably relied on the law of its own
    jurisdiction to conclude that insurance was unnecessary;
    instead, the court placed the insurance obligation on the
    California plaintiff who made deliberate contacts with
    Louisiana. Id.
    In McCann, the court echoed Offshore Rentals’
    emphasis on the importance of a state law that creates
    incentives for businesses to operate in its borders. 225 P.3d
    at 530–34.17 It further echoed Reich’s admonition that a
    17
    In McCann, plaintiff California resident sued defendant corporation
    (organized in Delaware, located in New York), alleging exposure to
    CASSIRER V. TBC                               61
    asbestos that occurred in Oklahoma. 225 P.3d at 520. The exposure
    occurred when plaintiff was an Oklahoma resident, but he developed
    symptoms only after moving to California. Id. Oklahoma’s statute of
    repose would have barred plaintiff’s suit, but California’s statute would
    not. Id. at 527–29. McCann found a “true conflict.” Id. at 533. Oklahoma
    was interested in applying its statute of repose in favor of the non-
    Oklahoma defendant for two reasons: First, it had “a legitimate interest
    in attracting out-of-state companies to do business within its state, both
    to obtain tax and other revenue . . . and to advance the opportunity of
    state residents to obtain employment and the products and services
    offered by out-of-state companies.” Id. at 530. In support, McCann relied
    on Offshore Rental’s observation that a state has a legitimate interest in
    attracting “investors incorporated both [in-state] and elsewhere.” Id.
    (cleaned up). But California also had a legitimate interest because it had
    a specific statute extending the time to bring suit for “an action for injury
    or illness based upon exposure to asbestos.” Id. McCann clarified “that
    California has a legitimate interest in having a statutory provision that
    affords a remedy for or a benefit to an injured person or business applied
    when, as here, the injured person or business is a California business or
    resident, even when the injury-producing conduct occurs outside
    California.” Id.
    To resolve the conflict, McCann leaned heavily on the premise that,
    although California no longer applied the law of the place of the wrong,
    “California choice-of-law cases nonetheless continue to recognize that a
    jurisdiction ordinarily has ‘the predominant interest’ in regulating
    conduct that occurs within its borders . . . and in being able to assure
    individuals and commercial entities operating within its territory that
    applicable limitations on liability set forth in the jurisdictions law will be
    available.” Id. at 534. Although it concluded that plaintiff did not engage
    in “forum shopping,” McCann found crucial that, if defendant were
    subjected to liability, Oklahoma’s interest would be subordinated to that
    of California’s “solely” because “plaintiff happened to move to a
    jurisdiction whose law provides more favorable treatment” “after
    defendant engaged in the allegedly tortious conduct in Oklahoma.” Id.
    And even though California would be unable to “extend its liberal statute
    of limitations” to this case, its interest was less significantly impaired
    because California takes “a restrained view of the scope or reach of
    62                          CASSIRER V. TBC
    jurisdiction has the “predominant interest in regulating
    conduct that occurs within its borders.” Id. at 534.
    Here, neither the majority nor the parties claim that either
    the Cassirers or TBC relied on California’s absence of
    precedent regarding whether adverse possession can create
    and vest prescriptive title to personal property. Prior to its
    purchase of the Painting, TBC did not learn that the Painting
    had ever passed through California and thus was not on
    notice as to the potential application of California law to the
    Painting. Order at 28–29; see also Cassirer, 
    2019 WL 13240413
    , at *7–10.
    Conversely, the majority concedes, as it must, that TBC
    relied on Spanish law. TBC specifically relied on Article
    1955 by requiring the Baron to provide a three-year prenda
    for certain paintings. Order at 8, 20. Prenda means “security,
    surety,” or “pledge” in Spanish. Oxford Spanish Dictionary
    661 (3d ed. 2003). The $10 million prenda operated as a
    security device for the Baron’s performance under the terms
    of his agreement with TBC. Cassirer, 
    2019 WL 13240413
    ,
    at *11. Namely, TBC and Spain “requested this pledge, in
    part, in order to protect themselves against the risk that there
    might be a painting or small group of paintings that could
    have a title issue.” 
    Id.
     The district court found that the three-
    year term of the prenda “intentionally corresponded to
    Spain’s three-year good faith acquisitive prescription period
    as provided in Article 1955 of Spain’s Civil Code.” 
    Id.
    Because TBC did not learn that the Painting had passed
    through California until this action, TBC could not
    California law with regard to the imposition of liability for conduct that
    occurs in another jurisdiction and that would not subject the defendant
    to liability under the law of the other jurisdiction.” Id. at 535. Oklahoma
    law thus applied.
    CASSIRER V. TBC                            63
    reasonably “have anticipated a need for” a pledge or
    insurance coverage extending beyond a three-year period.
    Offshore Rental, 
    583 P.2d at 729
    . Thus, only Spanish law
    has been relied upon here.
    D.
    In sum, even assuming the existence of a true conflict in
    step two of the conflict of laws analysis, the comparative
    impairment analysis in step three clearly favors the choice of
    Spanish law. Spain “has the predominant interest in
    regulating conduct that occurs within its borders.” McCann,
    225 P.3d at 534. Article 1955 is “an incentive for businesses”
    to operate in Spain because it provides predictability and
    certainty to businesses’ property interests. Cooper v. Tokyo
    Elec. Power Co. Holdings, Inc., 
    960 F.3d 549
    , 560 (9th Cir.
    2020). “California’s courts have frequently applied foreign
    laws that serve to protect businesses by limiting liability,
    even when applying that law precludes recovery by injured
    California residents.” Id. at 562. Each and every relevant
    factor favors Spanish law. The majority has not identified a
    single factor that goes the other way.18 Spanish law applies.
    III.
    The above analysis is clearly mapped out by decades of
    California Supreme Court precedent. There is nothing novel
    about this case that obfuscates this result. Yet the majority
    does not attempt to apply this analysis; instead, it ignores the
    relevance of California caselaw and then complains that that
    18
    The majority correctly rejects the Cassirers’ argument that Article
    1955 is more “antique” than California law. Order at 29. This argument
    is simply a subjective attack on the social worthiness of Spain’s policy,
    which attacks are not considered by California Courts in the comparative
    impairment analysis. Kearny, 
    137 P.3d at 925
    .
    64                         CASSIRER V. TBC
    caselaw provides insufficient guidance. The majority’s
    “anybody-but-us approach”19 to certification imposes
    significant costs to state courts, federal courts, and
    litigants.20
    Improper certification harms state courts for obvious
    reasons. Even if the California Supreme Court declines the
    certified question (which it should), it will do so only after
    investing precious judicial resources into evaluating the
    majority’s request. Imagine the hours the California
    Supreme Court (and its staff) will spend familiarizing itself
    with the facts of this case in particular. The Cassirers filed
    their complaint almost two decades ago. In that time, there
    have been numerous important district court rulings, four
    Ninth Circuit decisions and one Supreme Court opinion. The
    excerpts of record for this appeal alone are over 2000 pages
    long. And all that effort will be for naught. The certified
    question clearly does not merit review.
    The majority’s unnecessary certification order strains the
    comity that we strive to maintain with our colleagues in state
    courts. Comity must play a special role in our decision to
    certify because certification is intended to denote “respect
    for the place of the States in our federal system.” Arizonans
    for Off. Eng. v. Arizona, 
    520 U.S. 43
    , 75 (1997); see also
    Lehman Bros. v. Schein, 
    416 U.S. 386
    , 393–94 (1974)
    19
    See Town of Castle Rock, Colo. v. Gonzales, 
    545 U.S. 751
    , 758 n.5
    (2005) (criticizing the dissent for urging certification of a question of
    state law in a case with “horrible facts,” noting the dissent was adopting
    an “anyone-but-us approach”).
    20
    The majority claims to be “perplexed” by these observations. Order at
    33. I doubt it. The majority would likely agree that it is improper to ask
    the California Supreme Court what is its favorite color. The question
    certified by the majority is equally hypothetical.
    CASSIRER V. TBC                             65
    (Rehnquist, J., concurring). In this context, comity must be
    drawn upon with care because certification goes only one
    way. See Jason A. Cantone & Carly Giffin, Certified
    Questions of State Law: An Empirical Examination of Use
    in Three U.S. Courts of Appeals, 
    53 U. Tol. L. Rev. 1
    , 20
    (2021). While federal courts may burden state courts with
    questions of state law, no comparable process exists for state
    courts similarly to burden federal courts. And “burden” is
    the right word. When we certify non-determinative, non-
    novel questions like the majority does today, we deplete our
    reservoir of comity by wasting the California Supreme
    Court’s time and resources. That is contrary to the entire
    purpose of certification.
    The California Supreme Court is not the only victim of
    today’s order. Ill-considered certification harms federal
    courts as well because it encourages forum shopping bids.
    See Rebecca A. Cochran, Federal Court Certification of
    Questions of State Law to State Courts: A Theoretical and
    Empirical Study, 29 J. Legislation 157, 204–07 (2013); Metz,
    
    774 F.3d at
    24–25. Consider, for instance, the “leapfrogging
    diversity plaintiff” who files his state-law claim in federal
    court and then, after receiving adverse decisions there, asks
    for certification. Cochran, supra at 204. Here, the Cassirers
    have lately received adverse decisions at both the trial and
    appellate levels in the Ninth Circuit.21 In particular, the
    district court has already applied California’s choice of law
    test to conclude that Spanish law applied. Cassirer v.
    Thyssen-Bornemisza Collection Found., 
    153 F. Supp. 3d 1148
    , 1155–60 (C.D. Cal. 2015). It therefore comes as no
    21
    Although the Cassirers did receive a favorable decision in Cassirer III,
    where we held that their claims were timely under HEAR. 
    862 F.3d at
    959–64.
    66                         CASSIRER V. TBC
    surprise that the Cassirers’ counsel candidly told us, as
    earlier noted: “We want you to certify because we are pretty
    confident [about] what the California Supreme Court is
    going to do.” Oral Arg. at 20:10. Allowing this forum-
    shopping undermines our legitimacy and hinders the
    administration of justice. Cf. Org. for Advancement of
    Minorities with Disabilities v. Brick Oven Rest., 
    406 F. Supp. 2d 1120
    , 1131 (S.D. Cal. 2005) (“[D]iscouraging forum-
    shopping is a legitimate goal for the federal courts.”). Other
    circuits take this factor into account when considering
    whether to certify. See Metz, 
    774 F.3d 18
    ; United States v.
    Defreitas, 
    29 F.4th 135
    , 142 (3d Cir. 2022). So should we.
    Finally, improper certification harms litigants through
    delays. On average, roughly 500 days elapse between
    certification from our court and a corresponding decision
    from the state court.22 The impact of such a delay is palpable
    22
    Between 1998 and 2002, an average of 602 days elapsed between
    certification orders from our Circuit the corresponding state-court
    decisions. Kremen, 
    325 F.3d at 1052
     (Kozinski J., dissenting). Between
    2010 and 2018, that time has diminished to a still-significant 509 days.
    See Jason A. Cantone & Carly Giffin, Certified Questions of State Law:
    An Empirical Examination of Use in Three U.S. Courts of Appeals, 
    53 U. Tol. L. Rev. 1
    , 38 (2021). This delay is made all the more concerning
    by the increasing frequency with which our Circuit has used certification.
    From 2015 to 2020, we “certified eighty-four questions in fifty-five
    cases compared to twenty-three questions between 1990 and 1994.” Hon.
    Kenneth F. Ripple & Kari Anne Gallagher, Certification Comes of Age:
    Reflections of the Past, Present, and Future of Cooperative Judicial
    Federalism, 
    95 Notre Dame L. Rev. 1927
    , 1931 n.32. (May 2020). The
    increase from 23 to 84 certifications from our Circuit presented “[t]he
    most dramatic shift” of any other circuit. Cantone & Giffin, supra at 29.
    In a study comparing the Third, Sixth, and Ninth Circuits from 2010
    through 2018, researchers concluded that “[t]he Ninth Circuit was much
    CASSIRER V. TBC                             67
    in this case. If this case were a person, it would be almost old
    enough to vote. This delay is needless. The answer is
    obvious; California choice-of-law principles require
    application of Spanish law.
    I respectfully dissent from the majority’s order.
    more likely to certify a question than the Third or Sixth Circuit.” Id. at
    6, 44.
    These data suggest that we have grown increasingly reliant on
    certification, and they further suggest that we are outpacing other
    Circuits in doing so. Our overreliance on certification creates
    unnecessary delay in what is already the one of the slowest circuit courts
    in the country. See U.S. Court of Appeals, Judicial Caseload Profile,
    Ninth Circuit (2022), available at https://www.uscourts.gov/sites/default
    /files/fcms_na_appprofile0630.2022_0.pdf (last visited May 15, 2023)
    (providing the median times that elapse between an appellant’s filing of
    a notice of appeal and the disposition of the appeal). These data caution
    us to revisit our certification practices. Currently, four circuits have
    formal rules regarding certification. Ripple & Gallagher, supra at 1932
    n.35. Our Circuit is not one of them. Perhaps it is time for us to
    promulgate a formal rule that cabins the excesses of panel-by-panel
    discretion.