Chang v. Winklevoss , 95 Mass. App. Ct. 202 ( 2019 )


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    18-P-329                                             Appeals Court
    WAYNE CHANG & another1     vs.   CAMERON WINKLEVOSS & others.2
    No. 18-P-329.
    Suffolk.       December 13, 2018. - April 24, 2019.
    Present:    Kinder, Neyman, & Desmond, JJ.
    Practice, Civil, Motion to dismiss, Motion to amend, Summary
    judgment, Costs. Damages, Quantum meruit. Unjust
    Enrichment. Contract, Unjust enrichment, Termination,
    Joint venture, Rescission, Attorney. Partnership,
    Agreement, Dissolution. Uniform Partnership Act. Attorney
    at Law, Malpractice, Negligence, Conflict of interest,
    Representation of differing interests.
    Civil action commenced in the Superior Court Department on
    December 21, 2009.
    Motions to dismiss, filed on May 7 and 18, 2010, were heard
    by Peter M. Lauriat, J., and a motion for reconsideration, filed
    on May 26, 2011, was considered by him; a motion for summary
    judgment, filed on April 28, 2014, was heard by Thomas P.
    1   The i2hub Organization, Inc.
    2  Tyler Winklevoss, Divya Narendra, Howard Winklevoss,
    ConnectU, Inc. (formerly known as ConnectU LLC), Scott R. Mosko,
    and Finnegan, Henderson, Farabow, Garrett & Dunner LLP. While
    originally named as a defendant, ConnectU was dismissed from the
    case on March 22, 2013. The company no longer exists and is not
    a party to this appeal.
    2
    Billings, J.; the entry of judgment was ordered by Edward P.
    Leibensperger, J., and a motion for costs was heard by him.
    Alan D. Rose, Jr. (Meredith W. Doty also present) for the
    plaintiffs.
    Matthew Murray, of California (Michael Rubin, of
    California, & Max D. Stern also present) for Cameron Winklevoss
    & others.
    Erin K. Higgins (Christopher K. Sweeney also present) for
    Finnegan, Henderson, Farabow, Garrett & Dunner LLP, & another.
    KINDER, J.   In this case we examine the dismissal of
    contract and tort-based claims brought by software developer
    Wayne Chang against brothers Cameron and Tyler Winklevoss, the
    creators of ConnectU, Inc. (ConnectU), a social networking
    website that was a competitor to The Facebook, Inc. (Facebook).
    This action was filed following the settlement of protracted
    multistate litigation between Mark Zuckerberg, the founder of
    Facebook, and the Winklevoss brothers, Zuckerberg's pre-Facebook
    collaborators.   Chang's complaint alleged that he was entitled
    to a share of the proceeds of the settlement between the
    Winklevoss brothers and Zuckerberg -- $65 million in cash and
    stock tendered by Facebook in exchange for ConnectU.
    Chang's suit arises from the failed business relationship
    between Chang and his company, The i2hub Organization, Inc.
    (i2hub), the Winklevoss brothers, Divya Narendra, and Howard
    3
    Winklevoss (collectively, the Winklevoss defendants),3 and
    ConnectU.    Chang's complaint also included malpractice claims
    against Scott R. Mosko (Mosko), an attorney who previously
    represented Chang, and Mosko's law firm4 (collectively, the Mosko
    defendants).
    Chang asserted contract and tort claims against the
    Winklevoss defendants, claiming that they had breached at least
    one of two agreements entitling him to a portion of the Facebook
    settlement proceeds.     Alternatively, Chang claimed that, in the
    absence of an enforceable agreement, he was entitled to recover
    damages through equitable claims, including quantum meruit and
    unjust enrichment.     Chang's equitable claims were dismissed for
    failure to state a claim, and his remaining contract and tort
    claims were subsequently dismissed on summary judgment.     The
    professional negligence claims against the Mosko defendants were
    also dismissed on a motion pursuant to Mass. R. Civ. P. 12 (b),
    
    365 Mass. 754
     (1974), and final judgment entered for all
    defendants.5   On appeal, Chang claims error in the orders of
    3 For clarity, we use first names when referencing the
    individual Winklevosses.
    4   Finnegan, Henderson, Farabow, Garrett & Dunner LLP.
    5 After entry of the judgment and Chang's notice of appeal,
    a judgment for costs entered, awarding the Winklevoss defendants
    $30,305.53 for deposition costs. Chang filed an amended appeal,
    to include the costs award, but makes no argument in his brief
    regarding the award. The argument is therefore waived. See
    4
    dismissal and the decision on the defendants' motion for summary
    judgment.   We affirm, principally because we agree that the
    business relationship between Chang and the Winklevoss
    defendants ended long before the commencement of the settlement
    negotiations between the Winklevoss brothers and Facebook.
    Background.    1.    Formation of the business relationship.
    We summarize the facts alleged in Chang's complaint, accepting
    them as true for the purpose of our review of the rule 12 (b)
    dismissal of the quantum meruit and unjust enrichment claims.
    Harrington v. Costello, 
    467 Mass. 720
    , 724 (2014).
    Chang launched i2hub, a peer-to-peer, file-sharing
    "platform," in March 2004.    ConnectU, a social networking site
    in competition with Facebook, was founded by Cameron and Tyler
    Winklevoss.   At some point, Divya Narendra and Howard Winklevoss
    (Cameron and Tyler's father) also became coowners of ConnectU.
    Seeking to increase ConnectU's user base, Cameron and Tyler
    contacted Chang in October of 2004, to explore forming a
    business relationship.    The parties agreed to integrate i2hub
    software into ConnectU's social networking website, and
    discussed forming a jointly owned holding company, later
    referred to as the Winklevoss Chang Group (WCG), which would own
    both companies as well as other Internet-based entities that
    Mass. R. A. P. 16 (a) (9) (A), as appearing in 
    481 Mass. 1628
    (2019).
    5
    they would jointly develop.    The parties further agreed that,
    upon completion of the integration, Chang would be given the
    option to acquire a fifteen percent ownership interest in
    ConnectU.    On November 23, 2004, Cameron sent Chang a memorandum
    of understanding (MOU) via e-mail,6 and Chang accepted the terms
    the next day by e-mail.
    Over the next several months, the parties worked
    collaboratively, holding themselves out as partners in the
    development of ConnectU, i2hub, and other Internet entities.
    Chang and the Winklevoss defendants opened an office in Amherst
    run by Chang, with a small staff paid for by Cameron and Tyler.
    Revenue generated by i2hub and other Internet entities Chang
    worked on was redirected to ConnectU.    Chang also began working
    to integrate the i2hub software into ConnectU, and claimed he
    completed the integration in February, 2005.    The complaint did
    not indicate what, if any, compensation Chang received.
    6   The MOU stated, in pertinent part:
    "Upon completion of the integration, CU [ConnectU] will
    give Wayne Chang the option to exercise a 15% stake in CU.
    "This option can be exercised if and only if one of the
    following conditions occurs:
    "1. CU terminates its relationship with i2hub after
    integration
    "2.    CU does not enter into a holding company with
    i2hub."
    6
    Beginning in April 2005, the business relationship quickly
    deteriorated as the parties became entangled in various
    financial and ownership disputes (further described infra).
    2.   Termination of the business relationship.   We summarize
    the undisputed facts which relate to the Winklevoss defendants'
    motion for summary judgment.   The business collaboration between
    Chang and the Winklevoss defendants was short-lived.   The
    parties do not dispute that they never executed a written
    agreement to form WCG; nor is there any evidence of any
    agreement on the specific terms of a working partnership or
    holding company.   Several months after the relationship
    commenced in the fall of 2004, it became antagonistic due to
    intensifying financial and ownership disputes.   In April of
    2005, Cameron and Tyler informed Chang that they had ceased
    funding him and the Amherst office.   They also claimed that
    Chang was in debt to them for expenses in the amount of
    approximately $18,000 and demanded repayment or equity in i2hub.
    The record contains substantial documentation in the form
    of e-mail messages and online discussions (instant messaging)
    exchanged during April and May of 2005 between Chang and the
    Winklevoss brothers, as well as between Chang and John Taves, a
    principal of a company hired to work on the integration of
    ConnectU and i2hub.   These communications indicate that both
    parties sought to end their business relationship.   On April 23,
    7
    2005, Chang told Taves that he had "no desire to continue to
    work with them" and that he was "figur[ing] out how to get
    funding, wash myself of the Winklevosses, and move onto the next
    venture."    The next day, Chang further stated to Taves, "[A]ll I
    want is i2hub . . . [I'm] willing to take just i2hub, rather
    than keeping my hands in connectu."    Chang reiterated this
    position in an e-mail to Taves on April 25, stating that his
    "end goal" was to retain ownership of i2hub and, on April 28, he
    again told Taves that he had "no wish to continue to work with
    them," adding that he had "already begun disintegration."
    In a lengthy instant message exchange on May 25, 2005,
    Chang and Tyler discussed the status of their working
    relationship and Chang's alleged debt.    Focusing on an upcoming
    press release concerning i2hub, Tyler told Chang to "make sure
    you take our names off of anything to do with i2hub."    Chang
    responded, "[M]ake sure you remove i2hub from connectu."     The
    conversation continued with Tyler asking, "[W]hy would you want
    our names on the press release if we are no longer working
    together?"    Chang responded, "[I] don't," adding that he also
    did not "want i2hub associated with connectu anymore," and ended
    by stating that i2hub and ConnectU were "no longer working
    together."
    Chang also expressed doubts as to whether WCG or any other
    holding company or partnership was ever formed.    In an e-mail to
    8
    Tyler on April 23, 2005, Chang stated that WCG "was never
    fleshed out," that he was "sent a draft of the agreement, but
    nothing was done on that . . . [and that it was] something that
    hasn't been created."   In an instant message exchange with Taves
    on April 24, Chang referred to WCG as "a non-existent holding
    company," claiming he "never agreed to [a] holding company," and
    that no "merger" had occurred because he "didn't agree to the
    terms [Cameron and Tyler] set out."    In an e-mail to Taves on
    the same day, he further asserted that "the parent company was
    never formed."   In another e-mail to Taves in late May, he
    stated:   "The umbrella corporation never materialized.   So both
    companies have been separate, but working jointly."   In the same
    May 25 instant message exchange noted above, in response to
    Tyler's admonishing him to fulfill his agreements, Chang
    countered by saying, "[S]how me the agreement."   Chang further
    stated that until the dispute over the debt was resolved, "there
    is no deal in place."   He went on to explain that "there is no
    agreement" and, therefore, when the funding stopped, he "stopped
    working with connectu's interest in mind," and that there was
    "no reason for [him] to continue when connectu has no desire
    to."   Chang continued to reiterate that "theres [sic] no
    agreement in place."    Chang ended the exchange by stating that
    the financial dispute needed to be resolved before he would go
    9
    forward:   "[Y]ou decide what you want to do.    [I]f you want the
    integration to go ahead, make an offer."
    Finally, while Chang claimed in his complaint that he had
    completed the integration, he indicated to Tyler in the May 25
    instant message exchange that the integration was "never
    completed."   He explained that he had stopped working on
    integration because Cameron and Tyler ceased funding him, and
    would continue to withhold his services until the dispute over
    the debt was resolved.
    After May 25, 2005, there was little contact between the
    parties.   The parties do not dispute that the Winklevoss
    defendants continued operating ConnectU without Chang.
    Likewise, Chang continued to operate i2hub until he shut it down
    six months later on November 14, 2005.
    3.     The Facebook litigation.   On September 2, 2004, prior
    to Chang's involvement with the Winklevoss defendants, ConnectU
    filed an action in the United States District Court for the
    District of Massachusetts against Zuckerberg, Facebook, and
    others, asserting, inter alia, misappropriation of trade
    secrets.    See ConnectU LLC vs. Mark Zuckerberg, No. 04-CV-11923
    (D. Mass.) (Massachusetts action).    Chang was not a party to the
    action.    Almost a year later, in August 2005 (after Chang and
    the Winklevoss defendants had ended their business
    collaboration), Facebook brought an action in the California
    10
    Superior Court against ConnectU and the Winklevoss defendants
    alleging that one of the websites Chang had helped develop
    misappropriated Facebook's proprietary information and user
    data.   The case was later removed to the United States District
    Court for the Northern District of California (District Court).
    See Facebook Inc. vs. Connect U, Inc., No. 5:07-CV-01389 (N.D.
    Cal.) (California action).   (We refer to the Massachusetts and
    California actions collectively as the Facebook litigation.)
    Chang was eventually named as a defendant in the California
    action.
    Facebook and ConnectU agreed to a global settlement of all
    pending litigation at a February 22, 2008 mediation.   Pursuant
    to the terms of the settlement, Facebook received one hundred
    percent of ConnectU's stock in exchange for $20 million in cash
    and over one million shares of Facebook stock for a total value
    of approximately $65 million.   Subsequent disagreement over the
    terms of the settlement led to further litigation.   The
    settlement was eventually deemed enforceable, and the California
    and Massachusetts actions were dismissed with prejudice,
    including all claims against Chang in the California action.
    See Facebook, Inc. v. Pacific Northwest Software, Inc., 
    640 F.3d 1034
     (9th Cir. 2011); ConnectU, Inc. vs. Facebook, Inc., No. 07-
    11
    CV-10593 (D. Mass. July 22, 2011) (order of dismissal);7 Facebook
    Inc. vs. Connect U, Inc., No. 5:07-CV-01389 (N.D. Cal. Dec. 15,
    2008) (order of dismissal).
    Chang filed the present action on December 21, 2009,
    claiming that, by virtue of his fifty percent interest in WCG,
    he was entitled to a fifty percent share of the settlement
    proceeds.8
    4.   The Mosko defendants' representation of Chang.    For the
    purpose of our review of the Mosko defendants' motion to
    dismiss, we again accept the facts alleged in the complaint as
    true.    Harrington, 467 Mass. at 724.   We include facts derived
    from documents, e-mails, and other materials referenced or
    relied upon in the complaint.    See Harhen v. Brown, 
    431 Mass. 838
    , 839-840 (2000).    We also take judicial notice of court
    orders pertaining to the Facebook litigation settlement.     See
    Reliance Ins. Co. v. Boston, 
    71 Mass. App. Ct. 550
    , 555 (2008).
    The Winklevoss defendants and ConnectU retained the Mosko
    defendants to defend them in the California action.    When Chang
    was named as a defendant in that action, the Winklevoss brothers
    7 This case was a sequel to the earlier Massachusetts
    filing; the two cases were consolidated.
    8 Chang alleged in the alternative that, pursuant to the
    MOU, he was entitled to a fifteen percent share of the
    settlement. On appeal, he pursues only his theory as to his
    alleged fifty percent ownership of WCG.
    12
    and their father, Howard, arranged and paid for Mosko to also
    represent Chang.   Chang claimed that, while the Mosko defendants
    were aware of the MOU between Chang and ConnectU, as well as
    Chang's partnership in WCG, he and the Mosko defendants never
    discussed any potential claims he might have against ConnectU or
    the Winklevoss defendants.
    The Mosko defendants' representation of Chang was
    memorialized in an engagement agreement, signed by Chang on
    March 1, 2007.   The agreement stated in detail that Mosko was
    concurrently representing the Winklevoss defendants; that the
    Winklevoss defendants were his "primary client[s]"; and that he
    agreed to additionally represent Chang "[a]s an accommodation"
    to the Winklevoss defendants.   The agreement further provided
    that Chang would "waive any current or future conflicts that
    . . . may exist in the future by [virtue of the Mosko
    defendants'] representation [of both Chang and the Winklevoss
    defendants]."
    The complaint alleged that while Mosko had informed Chang
    by e-mail on January 29, 2008, about an upcoming mediation
    (which Mosko attended), Mosko never provided Chang with any
    specific information about the date, time, or place of the
    mediation, or, after the mediation, the terms of the settlement
    agreement.   In the January 29 e-mail, Mosko stated that
    "[u]nless I hear objection, I will move forward with this
    13
    mediation."   On February 25, 2008, Mosko sent Chang a second e-
    mail informing him that, as a result of the mediation, the
    parties had reached a global settlement of the Facebook
    litigation, and stated, "The effect [of the settlement] on you
    will be a dismissal of the [California action] with prejudice."
    No other details concerning the terms of the settlement were
    included.   The terms of the settlement agreement did not specify
    any particular apportionment of the proceeds among those with an
    ownership interest in ConnectU.
    On April 28, 2008, Mosko sent Chang a third e-mail, which
    summarized their telephone conversation earlier that day
    regarding the continuing acrimony between Facebook and the
    Winklevoss defendants over the settlement.   Mosko's e-mail
    stated, "We also discussed at least the possibility that . . .
    you may be in a position to disagree with ConnectU's decision to
    dispute the enforceability of the settlement agreement.    To the
    extent there may be a conflict between you and ConnectU, I
    advised that it might be a good idea for you to get a separate
    attorney to look at this. . . .   For now, you have told me that
    you are willing to sit on the side lines without raising a
    conflict, while ConnectU and Facebook fight this recent battle."
    By November of 2008, pursuant to an order of the District
    Court enforcing the settlement agreement, the proceeds of the
    settlement were transferred to a special master.   Soon
    14
    thereafter, pursuant to an amended judgment ordering specific
    performance of the settlement agreement, the special master was
    ordered to transfer Facebook's payment of cash and stock to
    Boies, Schiller & Flexner LLP (BSF), a law firm representing the
    Winklevoss defendants and designated to act as trustee of the
    proceeds.   The court ordered that, upon transfer to BSF, the
    proceeds were to be held "in trust for [BSF's] clients and any
    lawful claimant."    A year later, in 2009, Chang filed the
    complaint in this action.    The settlement proceeds continued to
    be held in trust until the litigation (including the appeal)
    over the enforceability of the settlement agreement was resolved
    in December 2011.    Chang did not file any pleading seeking
    consideration as a "lawful claimant."9
    Discussion.    1.   The equitable claims.   a.   The Winklevoss
    defendants' motion to dismiss and Chang's motion for
    9 We note that additional facts not before the judge, but
    included in the record, confirm that Chang failed to take any
    action to assert that he was a lawful claimant. On November 1,
    2011, the District Court ordered all "parties seeking
    disbursement of funds" to file motions and appear before the
    court at a hearing to be held on November 28, 2011. BSF
    forwarded the order to Chang's then-attorneys (he was no longer
    represented by the Mosko defendants) and advised them of Chang's
    options. On December 5, 2011, the District Court ordered
    disbursement of the settlement proceeds to the claimants,
    including the Winklevoss defendants and others. Chang never
    filed a claim and therefore was not included in that court's
    order of disbursement.
    15
    reconsideration.   We review the allowance of a motion to dismiss
    pursuant to Mass. R. Civ. P. 12 (b) (6) de novo, accepting the
    allegations in the complaint as true and drawing all reasonable
    inferences in the nonmoving party's favor.   Curtis v. Herb
    Chambers I-95, Inc., 
    458 Mass. 674
    , 676 (2011).   "The ultimate
    inquiry is whether [Chang] alleged . . . facts . . . so as to
    plausibly suggest an entitlement to relief" (citation omitted).
    Baker v. Wilmer Cutler Pickering Hale & Dorr LLP, 91 Mass. App.
    Ct. 835, 842 (2017).
    Relying on MCI WorldCom Communications, Inc. v. Department
    of Telecommunications & Energy, 
    442 Mass. 103
    , 116 (2004), and
    Fox v. F & J Gattozzi Corp., 
    41 Mass. App. Ct. 581
    , 589 (1996),
    a Superior Court judge (first judge) issued a consolidated order
    on April 28, 2011, dismissing the quantum meruit and unjust
    enrichment claims, and stating simply, "Chang has asserted both
    tort and breach of contract claims which, if the Winklevoss
    defendants are held liable, will adequately compensate him for
    any losses."   Upon reconsideration, the judge revised his
    grounds for dismissal, stating that "[t]he court has already
    determined that the complaint alleges sufficient facts as to the
    existence of a contract to withstand a motion to dismiss."     We
    interpret the judge's succinct rulings as an application of the
    well-settled principle that a claim of unjust enrichment or
    quantum meruit will not lie "where there is a valid contract
    16
    that defines the obligations of the parties" (citation omitted).
    Metropolitan Life Ins. Co. v. Cotter, 
    464 Mass. 623
    , 641 (2013)
    (unjust enrichment).    Boston Med. Ctr. Corp. v. Secretary of the
    Executive Office of Health & Human Servs., 
    463 Mass. 447
    , 467
    (2012) (quantum meruit).
    However, the existence of a contract is a question of fact.
    LeMaitre v. Massachusetts Turnpike Auth., 
    70 Mass. App. Ct. 634
    ,
    637 (2007).   At the pleading stage, that factual question had
    not been resolved.     Although damages for breach of contract and
    unjust enrichment are mutually exclusive, "it is accepted
    practice to pursue both theories at the pleading stage."     Zelby
    Holdings, Inc. v. Videogenix, Inc., 
    92 Mass. App. Ct. 86
    , 93
    (2017), quoting Lass v. Bank of Am., N.A., 
    695 F.3d 129
    , 140-141
    (1st Cir. 2012).10   Thus, dismissal of Chang's equitable claims
    on these grounds at the pleading stage, where the claims were
    properly pleaded in the alternative, was error, "as it
    presuppose[d] the existence of a valid underlying contract."
    10Chang properly pleaded an alternative basis for relief
    pursuant to Mass. R. Civ. P. 8 (e) (2), 
    365 Mass. 749
     (1974),
    which "permits a party to state as many separate claims or
    defenses as may be properly available, 'regardless of
    consistency and whether based on legal or equitable grounds.'"
    Zelby Holdings, 92 Mass. App. Ct. at 92.
    17
    Zelby Holdings, supra.11   Upon our de novo review, however, we
    affirm the dismissal on different grounds.12
    To prove claims for quantum meruit and unjust enrichment,
    Chang would be required to demonstrate that he had conferred a
    measurable benefit on the Winklevoss defendants through the
    services he rendered and that he had a reasonable expectation of
    receiving compensation for those services.     See Finard & Co.,
    LLC v. Sitt Asset Mgt., 
    79 Mass. App. Ct. 226
    , 229 (2011).     Such
    compensation is the "fair and reasonable value" of the services
    provided.   J. A. Sullivan Corp. v. Commonwealth, 
    397 Mass. 789
    ,
    797 (1986).   Here, instead of seeking the fair and reasonable
    value of the services he provided to the Winklevoss defendants
    during their short collaboration, Chang sought the value of his
    alleged ownership interest in either ConnectU or WCG, ConnectU's
    parent company.13   Thus, Chang's asserted entitlement to a
    11We need not analyze Chang's quantum meruit and unjust
    enrichment claims separately as, in this context, these quasi-
    contract claims are indistinguishable. See Liss v. Studeny, 
    450 Mass. 473
    , 479 (2008).
    12"We may affirm the judgment on any ground apparent on the
    record that supports the result reached in the [trial] court"
    (quotation and citation omitted). Lopes v. Commonwealth, 
    442 Mass. 170
    , 181 (2004).
    13Chang did not set forth any facts in his complaint
    regarding the fair and reasonable value of his services beyond a
    general reliance on his ownership stake in ConnectU and in the
    partnership, although in an affidavit subsequently submitted he
    stated that the Winklevoss defendants had paid him a stipend and
    reimbursed him for certain expenses.
    18
    portion of the Facebook litigation settlement proceeds was
    premised entirely on ownership interest(s) that were
    contractually created and defined.   As a matter of law, "a party
    does not recover on the contract itself under quantum meruit [or
    unjust enrichment]."   Finard, 79 Mass. App. Ct. at 229, quoting
    Liss v. Studeny, 
    450 Mass. 473
    , 480 (2008).   Accordingly,
    Chang's equitable claims did not provide a legally plausible
    basis for relief.
    b.   Chang's motion to amend the complaint.   After the first
    judge dismissed the equitable claims, Chang moved to amend his
    complaint.   The motion was denied by the same judge.   We review
    the denial of a motion to amend a complaint for abuse of
    discretion, Nguyen v. Massachusetts Inst. of Tech., 
    479 Mass. 436
    , 461 (2018), and Chang has the burden to show that the judge
    exceeded the bounds of his discretion.    Mancuso v. Kinchla, 
    60 Mass. App. Ct. 558
    , 572 (2004).   Although leave to amend should
    be "freely given when justice so requires," Mass. R. Civ. P. 15
    (a), 
    365 Mass. 761
     (1974), such leave may be denied where
    amending the complaint would be futile.   Nguyen, supra.     An
    amended complaint is futile if the amended claims would not
    survive a motion to dismiss for failure to state a claim.
    Mancuso, supra.
    19
    In his motion to amend, Chang sought to add facts showing
    that, as a result of his work, ConnectU gained more than 20,000
    users and was able to obtain and import additional user
    information.     Chang argued that these facts supported his
    contention that his services provided a benefit to ConnectU.
    However, the proposed amendments did not set forth any facts
    relating to the fair and reasonable value of the services Chang
    rendered, and they did not alter his theory of recovery, which
    remained grounded in his contract-based ownership interests.
    For these reasons, we cannot say that the judge "made a clear
    error of judgment in weighing the factors relevant to the
    decision . . . such that the decision [that the amended
    complaint was futile] falls outside the range of reasonable
    alternatives."    L.L. v. Commonwealth, 
    470 Mass. 169
    , 185 n.27
    (2014).
    2.    Chang's partnership claim against the Winklevoss
    defendants.    The Winklevoss defendants subsequently moved for
    summary judgment on Chang's contract claims.     The motion was
    allowed by a second Superior Court judge.     We review the
    allowance of a motion for summary judgment de novo.     Targus
    Group Int'l, Inc. v. Sherman, 
    76 Mass. App. Ct. 421
    , 428 (2010).
    In doing so, we look to the "same record as the motion judge"
    and determine "whether the evidence, viewed in the light most
    favorable to the losing party, establishes all material facts
    20
    and entitles the successful party to a judgment as a matter of
    law."   Id.
    While Chang's contract claims encompassed a number of
    related causes of action, on appeal he argues only that it was
    error to dismiss his claim that the Winklevoss defendants
    breached a partnership or joint venture agreement to create WCG,
    the holding company that was intended to own ConnectU, i2hub,
    and other ventures, and in which he claims to have had a fifty
    percent ownership stake (partnership claim).     Pursuant to the
    partnership claim, Chang asserted an entitlement to fifty
    percent of the Facebook litigation settlement proceeds.
    The second judge concluded that the undisputed material
    facts established that, while the parties may have entered into
    some semblance of an oral agreement to form a partnership,
    "whatever partnership there may have been (if any) was at an end
    by the mutual agreement of both sides" as of May 25, 2005.     The
    judge concluded that the undisputed material facts showed that
    the parting was mutual, as both sides sought to "extract
    themselves from one another and their shared business venture."
    We discern no error in the judge's reasoning.
    Chang contends that the judge erred by failing to apply the
    Massachusetts Uniform Partnership Act, G. L. c. 108A (MUPA),
    governing dissolution of at-will partnerships.    Under MUPA, a
    partnership will continue to exist until the winding up of its
    21
    affairs is concluded.   See G. L. c. 108A, § 30; Loan
    Modification Group, Inc. v. Reed, 
    694 F.3d 145
    , 151 (1st Cir.
    2012) (applying Massachusetts law).   "Winding up" is defined as
    a process occurring between dissolution and termination wherein
    "work in process is completed, partnership assets are sold,
    creditors are paid, and the business of the partnership is
    brought to an orderly close."    Reed, supra, quoting Anastos v.
    Sable, 
    443 Mass. 146
    , 151-152 (2004).    Here, the summary
    judgment record established that whatever winding up was
    necessary for this short-lived partnership, the process was
    complete as of December 2005.
    By the end of May 2005, the parties had mutually agreed to
    dissolve whatever partnership they may have had.   Chang's claim
    that "[t]here remained ongoing disputes about the finances of
    the partnership, including the Winklevoss [d]efendants' claim
    that Chang owed them $18,000, and Chang's claim that the
    Winklevoss [d]efendants had an ongoing duty to fund his work for
    the business," is not supported by the summary judgment record.
    There was no evidence of any effort to follow up on these
    "disputes" after May 25, 2005.   While there was some suggestion
    during an online discussion on May 25 of a further conference
    call, there was no evidence that such a call occurred.       When
    Chang suggested to Tyler, "Decide what you want to do [and] if
    you want the integration to go ahead, make an offer," no offer
    22
    was forthcoming.   In fact, after May 25, 2005, the parties had
    almost no contact.14   In short, the summary judgment record did
    not raise a triable issue of fact on these issues.    The winding-
    up process was complete and the partnership was terminated well
    before the Winklevoss defendants entered into settlement
    negotiations with Facebook in February of 2008.
    The parties' undisputed words and conduct demonstrate that
    by at least the end of 2005 they had mutually agreed to rescind
    any partnership, and that their relationship going forward would
    be as if no partnership had ever existed, with Chang retaining
    full control over i2hub and the Winklevoss defendants retaining
    full control over ConnectU.   "An agreement to rescind a contract
    need not be made in any formal, express terms.    Rather, mutual
    assent to a rescission may be inferred from the attendant
    circumstances and conduct of the parties."   Puma v. Gordon, 
    9 Mass. App. Ct. 489
    , 495 (1980).   See Flaherty v. Goldinger, 
    249 Mass. 564
    , 567 (1924).   Here, even when the facts are viewed in
    the light most favorable to Chang, the undisputed evidence
    established that the parties agreed to take their respective
    companies and "simply to walk away."   For these reasons, we
    14The record shows only a single e-mail from Cameron to
    Chang dated December 21, 2005, in which Cameron informed Chang
    of an outstanding bill of $3,820 owed to the Pioneer Valley
    Transit Authority for advertisements. Chang paid the bill.
    23
    discern no error in the allowance of the Winklevoss defendants'
    motion for summary judgment.15
    3.   Legal malpractice claim against the Mosko defendants.
    To prevail on a claim for legal malpractice, a plaintiff must
    establish the existence of an attorney-client relationship, a
    breach of the duty of care, actual damages, and that the breach
    proximately caused such damages.   See Williams v. Ely, 
    423 Mass. 467
    , 475-476 (1996).   Chang's allegations, taken as true, "must
    be enough to raise a right to relief above the speculative
    level."   Iannacchino v. Ford Motor Co., 
    451 Mass. 623
    , 636
    (2008), quoting Bell Atl. Corp. v. Twombly, 
    550 U.S. 544
    , 555
    (2007).   "A complaint is insufficient if it rests on 'naked
    assertions' devoid of 'further factual enhancement.'"   Doe v.
    American Guar. & Liab. Co., 
    91 Mass. App. Ct. 99
    , 105 (2017),
    quoting Ashcroft v. Iqbal, 
    556 U.S. 662
    , 678 (2009).
    In allowing the motion to dismiss the claims against the
    Mosko defendants for lack of subject matter jurisdiction
    pursuant to rule 12 (b) (1), the first judge focused on Chang's
    failure to demonstrate any cognizable harm he sustained as a
    result of the Mosko defendants' representation, reasoning that
    "any injury as a result of missed settlement opportunities is
    15Given the result we reach, we need not address the
    defenses of repudiation and equitable estoppel raised by the
    Winklevoss defendants.
    24
    far too speculative, and any causal connection to the
    defendants' conduct far too attenuated, to confer standing."
    The judge further concluded that "[a]ny claim to the proceeds
    rests, of necessity, on Chang's claim of ownership rights in
    ConnectU."    The judge added that dismissal was also appropriate
    under rule 12 (b) (6) for Chang's failure to state a claim.
    While we agree that Chang failed to set forth any
    cognizable harm resulting from professional negligence, we rest
    our determination on Chang's failure to state a claim under rule
    12 (b) (6).   On appeal, Chang argues that he was injured by the
    Mosko defendants' negligence in both failing to adequately
    protect his interests and in subordinating his interests to
    those of the Winklevoss defendants during the Facebook
    litigation mediation.    In support thereof, he points to a number
    of alleged negligent acts, including failing to sufficiently
    inform him of, or include him in, the Facebook litigation
    settlement discussions in which he had a direct and substantial
    interest, thus depriving him of the opportunity to participate
    so as to obtain a more favorable outcome.    Chang further claims
    that the Mosko defendants agreed to a release of his claims
    without his authorization, and failed to advise him of both
    potential conflicts of interest arising from the Mosko
    defendants' dual representation of him and the Winklevoss
    25
    defendants, as well as his right to independent counsel or
    possible claims against the Winklevoss defendants.
    These allegations are either insufficiently supported or
    contradicted by the evidence relied on or referenced in the
    complaint.    For example, Chang's engagement agreement with the
    Mosko defendants is contrary to Chang's claim that he was not
    made aware of any potential conflicts of interest.     The
    agreement expressly stated that Mosko was concurrently
    representing the Winklevoss defendants, that they were his
    "primary client[s]," and that Chang was agreeing to "waive any
    current or future conflicts" stemming from the representation.16
    Chang agreed to the representation on these terms.     Pursuant to
    Mass. R. Prof. C. 1.7 (b), as appearing in 
    471 Mass. 1335
    (2015), a lawyer may represent a client in the face of a
    possible risk of a conflict of interest as long as the lawyer
    reasonably believes that the representation will not adversely
    affect the client and the client gives informed, written
    consent.     Moreover, Chang's complaint noted that he never
    discussed his ownership interests in ConnectU or WCG with the
    16The engagement agreement was drafted to reflect the
    original purpose of the representation, which was "solely in
    connection with a deposition and document subpoena" Chang had
    received in the California action. The representation continued
    once Chang was named as a defendant in that action.
    26
    Mosko defendants.17   Even if the Mosko defendants were aware of
    Chang's ownership interests in ConnectU and WCG, the
    representation was limited to defending him against claims of
    misappropriation of proprietary information and user data
    brought by Facebook in the California action.   Pursuant to Mass.
    R. Prof. C. 1.2 (c), as appearing in 
    471 Mass. 1313
     (2015), "[a]
    lawyer may limit the scope of the representation if the
    limitation is reasonable under the circumstances and the client
    gives informed consent."
    The e-mails Mosko sent to Chang show that Mosko kept Chang
    reasonably updated on the negotiations and informed him of
    relevant details of the settlement -- for example, that the
    settlement procured a dismissal of Facebook's claims against
    Chang in the California action.   The e-mails also show that
    Chang was given ample opportunity to request additional
    information.   In one e-mail, Mosko advised Chang of potential
    conflicts of interest arising from the dual representation, as
    well as Chang's right to independent counsel.
    Finally, the terms of the settlement agreement, which are
    set forth in the District Court's order enforcing the agreement,
    17The complaint alleged only that the Mosko defendants were
    "aware of" the MOU, "aware of the existence" of WCG, and aware
    that Chang and the Winklevoss defendants had operated as
    partners.
    27
    did not apportion the proceeds among any of the ConnectU
    stakeholders.   Nor did Chang allege that the Mosko defendants
    should or could have altered the terms of the agreement to
    explicitly apportion to Chang any such share.    The assertion
    that the Mosko defendants' negligence caused Chang not to
    receive his fair portion of the settlement proceeds is further
    belied by the fact that, at the time Chang filed his complaint
    and for almost two years thereafter, the settlement proceeds
    were held in trust as ordered by the court in the California
    action for "any lawful claimant."   Accordingly, Chang's right to
    a portion of the settlement proceeds, if any, remained intact
    and was not impaired by any conduct of the Mosko defendants.18
    Chang does not explain his failure to submit a claim to the
    settlement proceeds.
    Simply put, Chang failed to allege facts to plausibly
    suggest that he "probably would have obtained a better result
    had the attorney exercised adequate skill and care," as he must
    to prevail on a professional negligence claim.   Fishman v.
    Brooks, 
    396 Mass. 643
    , 647 (1986).19
    18Chang claimed that the "any lawful claimant" language was
    inserted for the specific purpose of allowing the Winklevoss
    defendants' former counsel to submit a claim for payment of
    their fees. However, court orders and correspondence between
    the trustee and Chang's then-attorneys (no longer the Mosko
    defendants) show that Chang could have, in fact, submitted a
    claim of entitlement.
    28
    Judgment affirmed.
    Judgment for costs
    affirmed.
    19 "Other points, relied on by [Chang], but not discussed in
    this opinion, have not been overlooked. We find nothing in them
    that requires discussion." Commonwealth v. Domanski, 
    332 Mass. 66
    , 78 (1954).