Sun Capital Partners III, LP v. New England Teamsters & Trucki ( 2019 )


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  •           United States Court of Appeals
    For the First Circuit
    Nos. 16-1376
    19-1002
    SUN CAPITAL PARTNERS III, LP; SUN CAPITAL PARTNERS III QP, LP;
    SUN CAPITAL PARTNERS IV, LP,
    Plaintiffs, Appellants,
    v.
    NEW ENGLAND TEAMSTERS & TRUCKING INDUSTRY PENSION FUND,
    Defendant, Third Party Plaintiff, Appellee,
    SCOTT BRASS HOLDING CORP.; SUN SCOTT BRASS, LLC,
    Third Party Defendants.
    APPEALS FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MASSACHUSETTS
    [Hon. Douglas P. Woodlock, U.S. District Judge]
    Before
    Lynch, Stahl, and Lipez,
    Circuit Judges.
    John C. O'Quinn, with whom John F. Hartmann, Devin A.
    DeBacker, Kirkland & Ellis LLP, Theodore J. Folkman, and Pierce
    Bainbridge Beck Price & Hecht LLP, were on brief for appellants.
    Catherine M. Campbell, with whom Melissa A. Brennan, Renee J.
    Bushey, and Feinberg, Campbell & Zack, PC were on brief for
    appellee.
    Craig T. Fessenden, with whom Judith R. Starr, Kartar S.
    Khalsa, Charles L. Finke, and Louisa A. Soulard were on brief for
    Pension Benefit Guaranty Corporation, amicus curiae.
    November 22, 2019
    LYNCH, Circuit Judge.        The issue on appeal is whether
    two private equity funds, Sun Capital Partners III, LP ("Sun Fund
    III") and Sun Capital Partners IV, LP ("Sun Fund IV"), are liable
    for $4,516,539 in pension fund withdrawal liability owed by a brass
    manufacturing company which was owned by the two Sun Funds when
    that company went bankrupt.       The liability issue is governed by
    the Multiemployer Pension Plan Amendments Act of 1980 ("MPPAA").
    Under that statute, the issue of liability depends on whether the
    two Funds had created, despite their express corporate structure,
    an implied partnership-in-fact which constituted a control group.
    That question, in the absence of any further formal guidance from
    the Pension Benefit Guaranty Corporation ("PBGC"), turns on an
    application of the multifactored partnership test in Luna v.
    Commissioner, 
    42 T.C. 1067
    (1964).
    If the MPPAA imposes such withdrawal liability, PBGC
    states it assumes the New England Teamsters & Trucking Industry
    Pension Fund ("Pension Fund") intends to look to the private equity
    funds,   including     their   general    partners   and   their    limited
    partners,   to   pay   the   liability.     The   issues   raised   involve
    conflicting policy choices for Congress or PBGC to make.            On one
    hand, imposing liability would likely disincentivize much-needed
    private investment in underperforming companies with unfunded
    pension liabilities.     This chilling effect could, in turn, worsen
    the financial position of multiemployer pension plans.              On the
    - 3 -
    other hand, if the MPPAA does not impose liability and the Pension
    Fund becomes insolvent, then PBGC likely will pay some of the
    liability, and the pensioned workers (with 30 years of service)
    will receive a maximum of $12,870 annually. See 18 U.S.C. § 1322a.
    The    district    court    held        that    there     was   an   implied
    partnership-in-fact which constituted a control group.                        We reverse
    because we conclude the Luna test has not been met and we cannot
    conclude      that    Congress   intended        to    impose     liability        in   this
    scenario.
    I.
    We     describe    the     facts        as     to   the    organizational
    structures of the Sun Funds1 and related entities.                        We also refer
    to the facts set forth in our previous opinion in Sun Capital
    Partners III, LP v. New England Teamsters & Trucking Industry
    Pension Fund, 
    724 F.3d 129
    , 135 n.3 (1st Cir. 2013) (Sun Capital
    II).       The two Sun Funds are each distinct business entities with
    primarily different investors and investments.                            But they are
    controlled by the same two men, and they coordinate to identify,
    acquire, restructure, and sell portfolio companies.                            The Funds
    1  Sun Fund III and Sun Fund IV are collectively referred
    to as the "Sun Funds" or "Funds."      Sun Fund III technically
    comprises two funds: Sun Capital Partners III, LP and Sun Capital
    Partners III QP, LP. Because these are parallel funds, share a
    single general partner, and invest nearly identically, we treat
    them as one entity, as we did in Sun Capital Partners III, LP v.
    New England Teamsters & Trucking Industry Pension Fund, 
    724 F.3d 129
    , 135 n.3 (1st Cir. 2013).
    - 4 -
    form and finance subsidiary LLCs, through which they acquire and
    control portfolio companies, including Scott Brass, Inc. ("SBI"),
    the brass manufacturing company.                While the Funds jointly owned
    SBI, it filed for bankruptcy and subsequently withdrew from the
    Pension Fund, a multiemployer pension fund, incurring withdrawal
    liability.2        We restate here only certain facts, and then briefly
    give a procedural history of the litigation leading to the instant
    appeal.
    A.     The Organization of the Sun Funds
    Sun Capital Advisors, Inc. ("SCAI") is a private equity
    firm       which   pools   investors'   capital     in    limited   partnerships,
    assists       these   limited   partnerships       in    finding    and   acquiring
    portfolio companies, and then provides management services to
    those portfolio companies.         SCAI established at least eight funds.
    Two of them, Sun Fund III and Sun Fund IV, appellants here, are
    the investors in SBI, and both are organized under Delaware law as
    2  The price of copper dropped in 2008, reducing the value
    of SBI's inventory, which caused a breach of SBI's loan covenants.
    This prevented SBI from accessing credit and paying its bills,
    causing its bankruptcy and subsequent withdrawal from the Pension
    Fund. Sun Capital 
    II, 724 F.3d at 136
    . There is no suggestion
    that mismanagement of SBI by the Funds caused, or even contributed
    to, the bankruptcy.    It is clear that declining copper prices,
    likely a product of the global recession, caused SBI's bankruptcy.
    The Funds' acquisition of SBI may have prolonged the operation of
    SBI, and so lengthened the employment of its employees, but there
    is no evidence of how the Funds' investment in SBI impacted the
    company. There is also no indication that SBI employees had any
    alternative retirement savings vehicles (e.g., a 401(k) plan).
    - 5 -
    limited partnerships. The Sun Funds themselves do not have offices
    or employees, do not make or sell goods, and report to the IRS
    only investment income.         The Funds expressly disclaimed in their
    respective limited partnership agreements any partnership or joint
    venture with each other.         The Funds also maintained distinct tax
    returns, financial books, and bank accounts.
    Sun Funds III and IV each have one general partner, Sun
    Capital     Advisors    III,   LP   and    Sun   Capital   Advisors   IV,   LP,
    respectively.          These   general     partners   each   own   respective
    subsidiary management companies, Sun Capital Partners Management
    III, LLC ("SCPM III") and Sun Capital Partners Management IV, LLC
    ("SCPM IV").     The two management companies act as intermediaries
    between SCAI and holding companies.               The management companies
    contract with SCAI for the management services of SCAI's employees
    and consultants, and then with the holding company to provide these
    management services.
    Sun Funds III and IV, respectively, have 124 and 230
    limited partners.        Sixty-four of these limited partners overlap
    between the Funds.        The limited partners include both individual
    and   institutional      investors,       including   pension   funds,   other
    private equity funds, family trusts, and universities.3               The Sun
    3    The identities of the limited partners remain under
    seal.
    - 6 -
    Funds' limited partnership agreements vest exclusive control of
    the Funds in their respective general partners, assign the general
    partners    percentages    of   the   Funds'     total       commitments   and
    investment profits, and require the Funds to pay their general
    partners   an   annual   management   fee.4      The   Sun    Funds'   general
    partners, which are themselves organized as limited partnerships,
    have limited partnership agreements, which vest exclusive control
    over the general partners' "material partnership decisions" in
    limited    partnership    committees.         These    limited    partnership
    committees are each made up of two individuals, Marc Leder and
    Rodger Krouse.     These two men also founded and serve as the co-
    CEOs and sole shareholders of SCAI.       Leder and Krouse were the co-
    4    The Sun Funds owe to their general partners an annual
    management fee equal to two percent of their total commitments. A
    general partner may waive these fees to receive "waived fee
    amounts," which reduce its capital obligations in the event of a
    Sun Fund's future capital call.      Additionally, the Sun Funds
    receive an offset to the fees they owe their general partners
    commensurate to a portion of the fees the portfolio companies pay
    the management companies. When a Fund's management fee offsets
    exceed its management fees owed in a six-month period, it receives
    a "carryforward" that may offset the fees owed in the subsequent
    six-month period.
    The district court quite properly found Sun Fund III's
    fee waivers and Sun Fund IV's carryforwards to be direct economic
    benefits because they each provided either current, or potential
    future, financial benefits that a passive investor would not
    accrue. Sun Capital Partners III, LP v. New England Teamsters &
    Trucking Indus. Pension Fund, 
    172 F. Supp. 3d 447
    , 453–54 (D. Mass.
    2016) (Sun Capital III).
    - 7 -
    CEOs of the management company SCPM IV.5
    B.    The Operation of the Sun Funds and SBI
    The Funds used their controlling share of portfolio
    companies "to implement restructuring and operational plans, build
    management      teams,     become    intimately    involved   in     company
    operations,     and      otherwise   cause    growth   in   the    portfolio
    companies."     Sun Capital 
    II, 724 F.3d at 134
    .       The Sun Funds owned
    and   managed     their     acquisitions     through   various     corporate
    intermediaries.       The Sun Funds together sought out potential
    portfolio companies and, through SCAI, developed restructuring and
    operating plans before acquisition.            The Sun Funds then would
    attempt to sell a portfolio company for a profit, typically within
    two to five years of acquisition.            The Sun Funds would acquire,
    restructure, and sell companies both independently and together.6
    As part of their acquisition of SBI, the Sun Funds formed
    and financed Sun Scott Brass, LLC ("SSB-LLC").          Sun Fund III owned
    30% of SSB-LLC and Sun Fund IV owned 70% of SSB-LLC.          These shares
    reflect Sun Fund III investing $900,000 and Sun Fund IV investing
    $2.1 million in SSB-LLC. SSB-LLC in turn formed and financed Scott
    5   The record does not include SCPM III's Limited Liability
    Company Agreement, and so does not set forth the identity of SCPM
    III's executives.
    6   The record shows that Sun Funds III and IV held interests
    in eighty-eight entities at the relevant times, of which only seven
    overlapped. Only the ownership of SBI is at issue here.
    - 8 -
    Brass Holding Corporation ("SBHC"), a wholly owned, subsidiary
    holding company.      SBHC used the Sun Funds' $3 million investment
    in SSB-LLC and $4.8 million in debt to purchase all of SBI's stock.
    The purchase price reflected a 25% discount from the fair market
    value of the SBI stock at acquisition to account for SBI's known,
    unfunded pension liability.          The Funds, through SCAI employees
    placed in SBI, jointly operated SBI.
    C.     Procedural History
    In Sun Capital II, we remanded to the district court to
    determine whether the Funds were under common control with SBI and
    whether Sun Fund III engaged in trade or 
    business.7 724 F.3d at 150
    .       It determined that the Sun Funds had formed a partnership-
    in-fact sitting on top of SSB-LLC and that this partnership-in-
    fact owned 100% of SBI through SSB-LLC, and so concluded the Funds
    met the "common control" test utilized in MPPAA law.             Sun Capital
    Partners III, LP v. New England Teamsters & Trucking Indus. Pension
    Fund, 
    172 F. Supp. 3d 447
    , 463–66 (D. Mass. 2016).              That test is
    derived from tax law.        See 26 C.F.R. § 1.414(c)-2(b); 29 C.F.R.
    §§ 4001.2, 4001.3(a) (incorporating regulations promulgated under
    26     U.S.C.   § 414(c)).     The    district   court   held     that   this
    7   On remand, the district court held that Sun Fund III
    engaged in trade or business. Sun Capital 
    III, 172 F. Supp. 3d at 454
    –55. The Funds acknowledge that our decision in Sun Capital II
    controlled this holding and do not challenge it on appeal. But
    the Funds "reserve the right to seek further review of this . . .
    decision."
    - 9 -
    partnership-in-fact     engaged     in     "trade    or    business"    in   its
    operation of SBI.      Sun Capital 
    III, 172 F. Supp. 3d at 466
    –67.
    Accordingly, the district court held the Sun Funds jointly and
    severally responsible for SBI's withdrawal liability.              
    Id. at 467.
    The Sun Funds appealed the rulings that they were under
    common control with SBI, that they formed a partnership-in-fact,
    and, if a partnership-in-fact did exist, that it engaged in trade
    or business. PBGC filed an amicus brief in support of the district
    court ruling.
    II.
    A.    Standard of Review
    This case reaches the court on appeal from a grant of
    summary   judgment.     "We     review   a   grant   or   denial   of   summary
    judgment, as well as pure issues of law, de novo."                 Sun Capital
    
    II, 724 F.3d at 138
    (citing Rodriguez v. Am. Int'l Ins. Co. of
    P.R., 
    402 F.3d 45
    , 46–47 (1st Cir. 2005)).           This includes both the
    determination of withdrawal liability and the recognition of a
    partnership-in-fact.     See Pension Ben. Guar. Corp. v. Beverley,
    
    404 F.3d 243
    , 246, 250–53 (4th Cir. 2005).                Because the parties
    filed cross-motions for summary judgment, we "view each motion,
    separately, in the light most favorable to the non-moving party,
    and   draw   all   reasonable    inferences     in   that    party's    favor."
    OneBeacon Am. Ins. Co. v. Commercial Union Assurance Co. of Can.,
    
    684 F.3d 237
    , 241 (1st Cir. 2012) (internal quotation marks
    - 10 -
    omitted).
    B.   Withdrawal Liability under the MPPAA
    Congress enacted the MPPAA to ensure defined pension
    benefit plans remain viable, dissuade employers from withdrawing
    from multiemployer plans, and enable a pension fund to recoup any
    unfunded liabilities.           See PBGC v. R.A. Gray & Co., 
    467 U.S. 717
    ,
    720–22     (1984).        An     employer    completely        withdraws    from    a
    multiemployer plan when it "(1) permanently ceases to have an
    obligation to contribute under the plan, or (2) permanently ceases
    all covered operations under the plan." 29 U.S.C. § 1383(a).                       On
    withdrawal, an employer must pay its proportionate share of the
    plan's "unfunded vested benefits."                   
    Id. § 1391;
    see also 
    id. § 1381;
    Concrete Pipe & Prods. of Cal., Inc. v. Constr. Laborers
    Pension Tr. for S. Cal., 
    508 U.S. 602
    , 608–11 (1993); Sun Capital
    
    II, 724 F.3d at 138
    .
    To     prevent      evasion     of   the   payment      of    withdrawal
    liability,       the    MPPAA    imposes     joint     and    several     withdrawal
    liability not only on the withdrawing employers but also on all
    entities     (1)       under    "common     control"         with   the    obligated
    organization (2) that qualify as engaging in "trade or business."
    29 U.S.C. § 1301(b)(1); see also Sun Capital 
    II, 724 F.3d at 138
    .
    The imposition by Congress of withdrawal liability on commonly
    controlled group members can have the beneficial effect of delaying
    or preventing pension plans from becoming insolvent, preventing
    - 11 -
    reductions in pension benefits, and limiting claims on public
    monies, i.e., PBGC's multiemployer insurance fund.                 See PBGC v.
    Dickens (In re Challenge Stamping & Porcelain Co.), 
    719 F.2d 146
    ,
    150 (6th Cir. 1983).
    C.   Common Control
    The MPPAA's "common control" provision exists to prevent
    the "shirking [of] ERISA obligations by fractionalizing operations
    into many separate entities." Cent. States Se. & Sw. Areas Pension
    Fund v. Messina Prods., LLC, 
    706 F.3d 874
    , 878 (7th Cir. 2013)
    (quoting Cent. States, Se. & Sw. Areas Pension Fund v. White, 
    258 F.3d 636
    , 644 (7th Cir. 2001)).         ERISA, of which the MPPAA is a
    part,   as   a   remedial   statute,   is    to   be   construed    liberally.
    Teamsters Pension Tr. Fund-Bd. of Trs. of W. Conference v. Allyn
    Transp. Co., 
    832 F.2d 502
    , 507 (9th Cir. 1987).            We have held, in
    consequence, that the common control provision "in effect, pierces
    the corporate veil and disregards formal business structures."
    Sun Capital 
    II, 724 F.3d at 138
    .            And other circuits which have
    addressed the question agree.           See 
    Messina, 706 F.3d at 877
    (holding that the MPPAA can "pierce corporate veils and impose
    [withdrawal] liability on owners and related businesses"); Ceco
    Concrete Constr., LLC, v. Centennial State Carpenters Pension Tr.,
    
    821 F.3d 1250
    , 1260 (10th Cir. 2016) (holding the same).                   The
    legislative history is also consistent with this view.                 See S.
    Rep. No. 383, at 43 (1974) ("[T]he committee, by [§ 1301(b)],
    - 12 -
    intends to make it clear that the . . . provisions cannot be
    avoided by operating through separate corporations instead of
    separate branches of one corporation."); H.R. Rep. No. 807, at 50
    (1974) (same).
    In    1986,   Congress     authorized        PBGC   to   promulgate
    regulations      for   implementing     the     common     control    provision
    "consistent      and   coextensive    with    regulations       prescribed   for
    similar purposes by the Secretary of the Treasury under section
    414(c) of Title 26" of the Internal Revenue Code.                    29 U.S.C.
    § 1301(b)(1).
    The MPPAA regulations adopted in 1996 by PBGC, in turn,
    adopt the Treasury Department's regulations governing "common
    control."     The regulations state that entities are under common
    control if they are members of a "parent-subsidiary group of trades
    or business under common control."8           26 C.F.R. § 1.414(c)-2(b); 29
    C.F.R. §§ 4001.2, 4001.3(a) (incorporating Treasury regulations
    under 26 U.S.C. § 414(c)).           Notably, PBGC has not provided the
    courts or parties with any further formal guidance on how to
    determine common control specifically in the MPPAA context.                  Nor
    has PBGC updated its regulation on common control, 29 C.F.R.
    § 4001.3, since that regulation's adoption.
    8    There are also regulations defining "brother-sister
    groups of trades or businesses under common control," but these
    are not relevant to this appeal. See 26 C.F.R. § 1.414(c)-2(c).
    - 13 -
    The Treasury regulations9 define a "parent-subsidiary
    group" under the term "parent-subsidiary groups of trades or
    businesses under common control" as:
    one or more chains of organizations conducting
    trades   or   businesses   connected   through
    ownership of a controlling interest with a
    common parent organization if . . . (i) [a]
    controlling    interest   in   each   of   the
    organizations, except the common parent
    organization, is owned . . . by one or more of
    the other organizations; and (ii) [t]he common
    parent organization owns . . . a controlling
    interest in at least one of the other
    organizations.
    26 C.F.R. § 1.414(c)-2(b)(1).
    Treasury regulations also establish that there is a
    "controlling interest" if there is "ownership of stock possessing
    at least 80 percent of total combined voting power . . . or at
    least 80 percent of the total value of shares."       
    Id. § 1.414(c)-
    2(b)(2)(A).   The plain language of these provisions requires us to
    find, and ascribe liability to, the entity that controls (by at
    least 80%) the withdrawn employer.       See 
    Dickens, 719 F.2d at 151
    ("The purpose of the 80% regulation is obviously to find the party
    in control.").
    D.   Federal Partnership Law
    Like the district court, we inquire into the legal
    9    We also do not engage the Funds' argument that we should
    consider interpreting present Treasury regulations in light of the
    fate of earlier IRS regulations concerning partnerships and
    corporations which were rejected by some circuits.
    - 14 -
    question of whether the record demonstrates the Funds formed a
    partnership-in-fact, as a matter of federal common law, to acquire
    and operate SBI through SSB-LLC.
    We must look to federal tax law on the partnership-in-
    fact issue.    We do so because Congress "intended that a body of
    Federal substantive law [would] be developed by the courts to deal
    with issues involving rights and obligations under private welfare
    and pension plans."     Mass. Mut. Life Ins. Co. v. Russell, 
    473 U.S. 134
    , 156 (1985) (quoting Remarks of Senator Javits, 120 Cong. Rec.
    29,942 (1974)); Bd. of Trs. of W. Conference of Teamsters Pension
    Tr. Fund v. H.F. Johnson, Inc., 
    830 F.2d 1009
    , 1014 (9th Cir. 1987)
    (quoting the same with respect to MPPAA withdrawal liability).
    Moreover, by statute, PBGC's "common control" regulations must be
    "consistent    and    coextensive"    with   treasury   regulations   under
    § 414(c).     29 U.S.C. § 1301(b)(1).           These treasury regulations
    incorporate federal tax law's definition of partnership. 26 C.F.R.
    § 1.414(c)–2(a) (referencing 26 U.S.C. § 7701(a)(2)).            And courts
    facing similar issues have relied on federal tax law.            See, e.g.,
    Connors v. Ryan's Coal Co., Inc., 
    923 F.2d 1461
    , 1466–67, 1467
    n.37 (11th Cir. 1991) (relying on federal tax precedent to affirm
    recognition of a partnership and holding one of the partners
    responsible for the other partner's withdrawal liability).
    Federal    tax   law     provides    that   the   choice(s)   of
    organizational form under state law does not control this question
    - 15 -
    of whether a partnership-in-fact was established.                  See Comm'r v.
    Tower, 
    327 U.S. 280
    , 287–88 (1946) (holding that federal law
    governs whether parties formed partnership for tax purposes); H.F.
    Johnson, 
    Inc., 830 F.2d at 1014
    (concluding that federal law
    governed whether parties formed a partnership and so were liable
    for pension withdrawal under ERISA).                But state law, and express
    disclaimers of partnership formation that are determinative under
    state law, do provide some guidance.            H.F. Johnson, 
    Inc., 830 F.2d at 1014
    (holding that, "while [a court] may look to state law for
    guidance,"     federal     law   governs     whether   joint     venturers     share
    withdrawal liability).
    The Internal Revenue Code defines a "partnership" to
    include   "a      syndicate,     group,     pool,   joint    venture,    or    other
    unincorporated organization, through or by means of which any
    business, financial operation, or venture is carried on, and which
    is not, within the meaning of this title, a trust or estate or a
    corporation."        26   U.S.C.     § 7701(a)(2)      (emphasis    added).          It
    similarly    defines      "partner"    to    include    "a   member     in    such    a
    syndicate, group, pool, joint venture, or organization."                     
    Id. We look
       to   the   partnership10     factors    the   Tax    Court
    10   A joint venture differs from a partnership primarily in
    scope, see Podell v. Comm'r, 
    55 T.C. 429
    , 432 (1970), and the
    differences do not affect our analysis. Consequently, and like
    the district court and parties to this case, we employ the terms
    "partner" and "partnership" in our analysis.
    - 16 -
    adopted in Luna.   
    42 T.C. 1077
    –78.   The factors are:
    1.   "The agreement of the parties and their conduct in
    executing its terms";
    2.   "the contributions, if any, which each party has made
    to the venture";
    3.   "the parties' control over income and capital and the
    right of each to make withdrawals";
    4.   "whether each party was a principal and coproprietor,
    sharing a mutual proprietary interest in the net
    profits and having an obligation to share losses, or
    whether one party was the agent or employee of the
    other, receiving for his services contingent
    compensation in the form of a percentage of income";
    5.   "whether business was conducted in the joint names of
    the parties";
    6.   "whether the parties filed Federal partnership returns
    or otherwise represented to respondent or to persons
    with whom they dealt that they were joint venturers";
    7.   "whether separate books of account were maintained for
    the venture"; and
    8.   "whether the parties exercised mutual control over and
    assumed mutual responsibilities for the enterprise."
    
    Id. - 17
    -
    To the extent the Funds argue we cannot apply the Luna
    factors because they have organized an LLC through which to operate
    SBI, we reject the argument.         Merely using the corporate form of
    a   limited    liability   corporation    cannot   alone     preclude    courts
    recognizing the existence of a partnership-in-fact.                    There is
    precedent for recognizing a partnership-in-fact where the parties
    have formed a different entity through an express agreement.
    Wabash Railway Co. v. American Refrigerator Transit Co., 
    7 F.2d 335
    , 342–44 (8th Cir. 1925), cert. denied, 
    270 U.S. 643
    (1926),
    and Shorb v. Beaudry, 
    56 Cal. 446
    , 450 (1880), do just that.                See
    also In re Hart, Nos. 09-71053, 11-42424, 
    2014 WL 1018087
    , at *20
    n.11 (Bankr. N.D. Cal. Mar. 14, 2014) ("Shorb [v. Beaudry], though
    dated,   is     still   authority    in      California.").       Given     our
    understanding, we also reject the separate argument made by the
    Funds that the question of liability is resolved by the district
    court's conclusion that "[t]he conventional theories of a general
    partnership -- those that on the face reflect operational and
    institutional overlap between the Funds -- are not evident here."
    Sun Capital 
    III, 172 F. Supp. 3d at 463
    .
    If the Funds have, under this multi-factored Luna test,
    formed   a    partnership-in-fact,     then    under   the    common    control
    regulations they are jointly and severally liable for the debts of
    the partnership, including MPPAA withdrawal liability, if the
    separate trade or business test is also met.           E.g., Cent. States,
    - 18 -
    Se. & Sw. Areas Pension Fund v. Johnson, 
    991 F.2d 387
    , 391–92 (7th
    Cir. 1993).
    Importantly,      federal     common    law11   allows   a    pre-
    incorporation venture or partnership to survive the fact of the
    partners incorporating.      See Wabash 
    Ry., 7 F.2d at 342
    –44; cf.
    Chi., Milwaukee & St. Paul Ry. Co. v. Minn. Civic & Commerce Ass'n,
    
    247 U.S. 490
    , 498 (1918) (holding, for the purposes of a regulatory
    regime,   that    a     "technically     . . .    separate,"    subsidiary
    corporation was "a mere agency or instrumentality" of the two
    railway corporations that wholly controlled it).            That is, under
    federal law, if entities have in fact formed a partnership, merely
    creating a corporation through which they pursue the goals of the
    partnership does not necessarily end that partnership.             Although
    not as onerous as the common law veil piercing standard, the test
    is   rigorous:   when    parties,     including   when    operating    as   a
    partnership, "control[] a subsidiary company so that it may be
    used as a mere agency or instrumentality," a court may "deal with
    the substance of the transaction involved as if the corporate
    agency did not exist and as the justice of the case may require."
    Wabash 
    Ry., 7 F.2d at 344
    .
    11   See also Jolin v. Oster, 
    172 N.W.2d 12
    , 16 n.1 (Wis.
    1969) (collecting cases stating whether jurisdictions recognize
    joint ventures may survive incorporation, and noting the Eighth
    Circuit does).
    - 19 -
    III.
    The MPPAA, ERISA, and tax law require courts to look
    beyond how the parties label, or structure, themselves.                 Courts
    must rather look to the substance of the relationships. See, e.g.,
    
    Connors, 923 F.2d at 1467
    –68 (finding MPPAA withdrawal liability
    where individuals formed a partnership despite never explicitly
    agreeing to form one); 
    Johnson, 991 F.2d at 391
    –94 (adopting the
    test    in   Connors).12     PBGC   regulations    direct   us   to    Treasury
    regulations governing common control, which in turn require us to
    determine, under federal partnership law and the Luna test, whether
    the Funds formed a partnership-in-fact.           There are some facts here
    under the Luna factors that tend to support a conclusion that the
    Sun Funds formed a partnership-in-fact to assert common control
    over SBI, but consideration of all of the factors leads to the
    opposite conclusion.
    We first consider the Luna factors that favor a finding
    of de facto partnership.        Even before incorporating SSB-LLC, the
    Sun     Funds     together     "[sought]     out     potential        portfolio
    companies . . . in need of extensive intervention with respect to
    their management and operations, to provide such intervention, and
    then to sell the companies."          Sun Capital 
    II, 724 F.3d at 142
    12 Indeed in Tower, the Supreme Court disregarded the
    parties' own identification as a partnership when the substance of
    their relationship did not evidence a 
    partnership. 327 U.S. at 282
    , 291–92.
    - 20 -
    (emphasis     added).      The   Funds,    through      SCAI,   developed
    restructuring and operating plans for target companies before
    actually acquiring them through LLCs.13     
    Id. This behavior
    is some
    evidence of the Sun Funds "exercis[ing] mutual control over and
    assum[ing]     mutual   responsibilities   for    the    enterprise"    of
    identifying, acquiring, and selling portfolio companies together.
    Luna, 
    42 T.C. 1078
    .      Moreover, if the Sun Funds had in fact
    formed a partnership through these pre-incorporation activities,
    the mere creation of SSB-LLC would not, as a matter of law, in and
    of itself end this already-existing partnership-in-fact.               See
    Wabash 
    Ry., 7 F.2d at 342
    –44.
    The organization of the control of the Sun Funds and of
    control over SBI also is some evidence of a partnership-in-fact.
    The two men in control of the Funds' general partners, Leder and
    Krouse, essentially ran things for both the Funds and SBI.14
    13   This was a usual mode of operation; the Funds similarly
    coinvested and comanaged other companies between 2005 and 2008.
    They adopted the same organizational structure for these companies
    as they did with SBI.
    14    Sun Capital 
    III, 172 F. Supp. 3d at 461
    –62. As the only
    members of the Sun Funds' general partners' limited partner
    committees, Leder and Krouse wholly controlled the general
    partners and, by extension, the Sun Funds. Sun Capital 
    II, 724 F.3d at 134
    .     Although the Sun Funds have different limited
    partners, these partners may not participate in management
    decisions, and so Leder and Krouse had sole management authority.
    See B. Cheffins & J. Armour, The Eclipse of Private Equity, 33
    Del. J. Corp. L. 1, 9 (2008) (discussing the role of limited
    partners).
    - 21 -
    Together, and at Leder and Krouse's direction, the Sun Funds placed
    SCAI employees in two of SBI's three director positions, allowing
    SCAI to control SBI.    Sun Capital 
    III, 172 F. Supp. 3d at 467
    .
    Moreover, this pooling of resources and expertise in SCAI, which
    the Funds used not only to identify, acquire, and manage portfolio
    companies, and structure those deals, but to provide management
    consulting and employees to portfolio companies, including SBI, is
    evidence tending to show a partnership.    See Cahill v. Comm'r, 
    106 T.C.M. 324
    , 
    2013 WL 5272677
    , at *4 (2013) (concluding a
    party's desire "to pool his resources and to develop business
    jointly" evidenced a partnership); Luna, 
    42 T.C. 1078
    (holding
    that "mutual control over and . . . mutual responsibilities for
    [an] enterprise" indicate a partnership-in-fact).       Indeed, the
    record does not show a single disagreement between the Sun Funds
    over how to operate SSB-LLC.   The Funds' conduct in managing SSB-
    LLC is further evidence of a partnership-in-fact sitting above.
    Cf. Luna, 
    42 T.C. 1077
    (paralleling Luna factor one: "[t]he
    agreement of the parties and their conduct in executing its terms"
    (emphasis added)).
    We next discuss the Luna factors that counsel against
    recognizing a partnership-in-fact.      The record evidence is clear
    that the Funds did not "intend[] to join together in the present
    conduct of the enterprise" (at least beyond their coordination
    within SSB-LLC).   Comm'r v. Culbertson, 
    337 U.S. 733
    , 742 (1949);
    - 22 -
    see also Luna, 
    42 T.C. 1077
    (counting against factor one).                      The
    fact that the Funds expressly disclaimed any sort of partnership
    between the Funds counts against a partnership finding as to
    several of the Luna factors.                   See Luna, 
    42 T.C. 1077
    -78
    (counting against factor one, the "agreement of the parties";
    factor five, "whether business was conducted in the joint names of
    the   parties";       and    factor       six,      "whether     the    parties . . .
    represented to . . . persons with whom they dealt that they were
    joint venturers").          Most of the 230 entities or persons who were
    limited partners in Sun Fund IV were not limited partners in Sun
    Fund III. The Funds also filed separate tax returns, kept separate
    books, and maintained separate bank accounts -- facts which tend
    to rebut partnership formation.15                
    Id. at 1078
    (counting against
    factors six and seven). The Sun Funds did not operate in parallel,
    that is, invest in the same companies at a fixed or even variable
    ratio,     which    also    shows       some   independence        in   activity    and
    structure.
    The creation of an LLC by the Sun Funds through which to
    acquire    SBI     also    shows   an    intent     not    to   form    a   partnership
    (although    not     as    categorically       as    the   Funds    contend).      The
    formation of an LLC both prevented the Funds from conducting their
    15  There was some disagreement at oral argument about
    whether the record shows the Sun Funds co-investing with entities
    that Leder and Krouse do not control. The answer to this question
    would not change our decision.
    - 23 -
    business in their "joint names" (Luna factor five) and limited the
    manner in which they could "exercise[] mutual control over and
    assume[] mutual responsibilities for" managing SBI (Luna factor
    eight).    
    Id. The fact
    that the entities formally organized themselves
    as limited liability business organizations under state law at
    virtually all levels distinguishes this case from Connors and other
    cases     in    which     courts       have     found   parties      to    have     formed
    partnerships-in-fact, been under common control, and held both
    parties responsible for withdrawal liability.                      E.g., 
    Connors, 923 F.2d at 1467
    –68. These cases often involved individuals (typically
    married couples), rather than limited liability business entities
    like limited partnerships, further distinguishing them from the
    instant case.          E.g., 
    id. at 1464.
            And many of the cases in which
    courts    have    recognized           these   types    of    partnerships        involved
    fractionalizing already-existing businesses, rather than pursuing
    investments in different ones.                 E.g., 
    id. at 1467–68;
    Johnson, 991
    F.2d at 392
    –94.         Using the Luna factors, we conclude that most of
    them, on these facts, point away from common control.
    We credit the district court for its careful and reasoned
    analysis of the complex facts and law at hand.                       Nonetheless, the
    district       court    (and     the    Pension    Fund      and   PBGC)   too    greatly
    discounted       the      Luna     factors        rebutting        partnership-in-fact
    formation.        Importantly, although the district court correctly
    - 24 -
    concluded that incorporating SSB-LLC did not in and of itself
    prevent recognizing a partnership-in-fact between the Funds, SSB-
    LLC's incorporation implicates many Luna factors counting against
    that recognition (an analysis absent from the district court's
    opinion).
    Moreover,   we     are    reluctant   to   impose   withdrawal
    liability on these private investors because we lack a firm
    indication of congressional intent to do so and any further formal
    guidance from PBGC.           Two of ERISA and the MPPAA's principal
    aims -- to ensure the viability of existing pension funds and to
    encourage the private sector to invest in, or assume control of,
    struggling companies with pension plans -- are in considerable
    tension here.
    We do not reach other legal issues in the case, including
    the trade or business issue. We decide the issue of common control
    only as it has been framed before us and do not reach other
    arguments that might have been available to the parties.
    IV.
    We reverse entry of summary judgment for the Pension
    Fund and remand with directions to enter summary judgment for the
    Sun Funds.     No costs are awarded.
    - 25 -