Confirming Arbitration Awards in Law-Firm Dissolution Disputes: Strict Vacatur Limits, No “Manifest Disregard” Without Clearly Governing Law, and Enforcing Mediation-First Clauses

Introduction

In Mark Cuker v. Esther Berezofsky (3d Cir. Mar. 9, 2026) (not precedential), the Third Circuit affirmed the Eastern District of Pennsylvania’s confirmation of an arbitration award arising from the dissolution of a contingency-fee law firm, Williams Cuker Berezofsky (“WCB”). The named partners—Esther E. Berezofsky, Mark R. Cuker, and Gerald J. Williams—had executed an Agreement and Plan of Liquidation and Dissolution (the “Dissolution Agreement”), which divided open cases, addressed future fee allocations, imposed a mediation-first-then-arbitration dispute process, and required each party to bear its own fees, costs, and expenses.

The disputes concerned three matters: the Medtronic Pain Pump matter (“Medtronic”), the Benicar matter (“Benicar”), and the Hoosick Falls matter (“Hoosick Falls”). After mediation failed, arbitration proceeded on Medtronic and Benicar. During arbitration, Berezofsky attempted to inject Hoosick Falls claims, but the panel declined to reach them because the Dissolution Agreement required mediation before arbitration. The panel issued a short award reallocating certain fees on Medtronic and Benicar and directing that each party pay its own arbitration fees and costs. Berezofsky sought vacatur or modification, arguing (i) “manifest disregard” of law and public policy, (ii) arbitrary contract disregard, and (iii) arbitral “misconduct.” The Third Circuit rejected each challenge.

Summary of the Opinion

  • Standard of review: District court factual findings reviewed for clear error; legal conclusions de novo, but the arbitration award itself receives “extremely deferential” review.
  • Vacatur grounds: The court emphasized the narrow statutory bases for vacatur under 9 U.S.C. § 10(a).
  • “Manifest disregard”: The court noted it remains an open question whether “manifest disregard” survives as a vacatur doctrine, but held that even if it does, Berezofsky failed to meet the strict standard.
  • Medtronic: No manifest disregard or public-policy violation in reallocating fees; Berezofsky identified no clearly established law barring fee-sharing with lawyers who were not parties to the client contingency agreement.
  • Benicar: No basis for vacatur where the panel considered the Dissolution Agreement and evidence; the award was not “totally unsupported by principles of contract construction,” and was consistent with principles such as quantum meruit.
  • Hoosick Falls: No arbitral misconduct; the panel did not decide Hoosick Falls, and without an award there was nothing to vacate or modify.
  • Fees/costs: The panel’s direction that each party pay its own fees and costs tracked the Dissolution Agreement, defeating any “manifest disregard of the agreement” theory.

Analysis

Precedents Cited

The opinion is largely an application of established federal arbitration review principles. The cited authorities serve three primary functions: (1) define the appellate posture; (2) underscore the “exceedingly narrow” vacatur regime under the FAA; and (3) articulate the high threshold for any “manifest disregard” theory.

  • Jiangsu Beier Decoration Materials Co. v. Angle World LLC, 52 F.4th 554 (3d Cir. 2022)
    Used for the appellate framework: factual findings reviewed for clear error, legal conclusions de novo in confirmation proceedings. This orients review toward the district court’s decision while simultaneously preserving substantial deference to the arbitral award.
  • Indep. Lab'y Emps.' Union, Inc. v. ExxonMobil Rsch. & Eng'g Co., 11 F.4th 210 (3d Cir. 2021)
    Quoted for the core principle that review of an arbitrator’s decision is “extremely deferential.” This reinforces that even if the reviewing court might disagree on the merits, that disagreement is not a ground for vacatur.
  • Sutter v. Oxford Health Plans LLC, 675 F.3d 215 (3d Cir. 2012)
    Cited for the presumption that arbitral awards are enforceable and for the admonition that courts do not entertain mere factual or legal error claims. This is pivotal to rejecting arguments framed as “arbitrary” or “wrong” rather than statutorily defective.
  • Dluhos v. Strasberg, 321 F.3d 365 (3d Cir. 2003)
    Supports the proposition that vacatur is available only in “exceedingly narrow circumstances,” tying the analysis to the exclusive statutory grounds in 9 U.S.C. § 10(a).
  • Stolt-Nielsen S.A. v. AnimalFeeds Int'l, 559 U.S. 662 (2010)
    Cited (n.3) for the “open question” whether “manifest disregard” is a valid doctrine after the Supreme Court’s FAA jurisprudence narrowed vacatur grounds. The Third Circuit leverages this uncertainty to avoid endorsing the doctrine while holding that, even if it exists, the appellant cannot satisfy it.
  • Hall St. Assocs. L.L.C. v. Mattel, Inc., 552 U.S. 576 (2008)
    Invoked to emphasize that FAA §§ 10 and 11 provide the “exclusive grounds” for expedited vacatur/modification—casting doubt on extra-textual vacatur theories such as “manifest disregard of the law” and, as argued here, “manifest disregard of the agreement.”
  • Whitehead v. Pullman Grp., LLC, 811 F.3d 116 (3d Cir. 2016)
    Provides the operative definition of “manifest disregard”: the decision must “fly in the face of clearly established legal precedent,” typically where the arbitrator recognizes the controlling rule and ignores it. This sets a nearly insurmountable bar for appellants who cannot point to a clearly governing principle.
  • Newark Morning Ledger Co. v. Newark Typographical Union Loc. 103, 797 F.2d 162 (3d Cir. 1986)
    Quoted for the “rarest case” formulation, reinforcing that even strong disagreement does not translate into vacatur.
  • Ludwig Honold Mfg. Co. v. Fletcher, 405 F.2d 1123 (3d Cir. 1969)
    Used to reject the Benicar challenge: an award is not vulnerable if it is not “totally unsupported by principles of contract construction.” The court treats this as a boundary line—so long as the panel’s allocation can be reconciled with contract principles (including equitable doctrines), the award stands.

Legal Reasoning

1) FAA vacatur is narrow; “manifest disregard” (if it exists) is narrower still

The court grounded its analysis in 9 U.S.C. § 10(a), listing the exclusive statutory categories for vacatur: corruption/fraud, evident partiality, procedural misconduct causing prejudice, or arbitrators exceeding their powers. It then addressed Berezofsky’s attempt to fit her challenges into “manifest disregard of the law” (and “manifest disregard of the agreement”), highlighting the Supreme Court’s skepticism in Hall St. Assocs. L.L.C. v. Mattel, Inc. and the unresolved status noted in Stolt-Nielsen S.A. v. AnimalFeeds Int'l.

Rather than deciding the doctrine’s validity, the Third Circuit assumed arguendo it could apply and then enforced the Third Circuit’s stringent formulation from Whitehead v. Pullman Grp., LLC: the appellant must identify a “clearly governing legal principle” that the arbitrators appreciated and consciously disregarded. That framing converted Berezofsky’s contentions into a proof problem: without pinpointing controlling authority that forbids the panel’s approach, she could not prevail.

2) Medtronic: fee-sharing criticism failed because no clearly established prohibition was identified

Berezofsky argued that reallocation of Medtronic fees violated public policy and “manifestly disregarded” law because contingency fee agreements must be in writing under professional conduct rules (citing rules such as “a contingent fee agreement shall be in writing”). The court treated that as a mismatch between the cited principle and the award: Berezofsky did not dispute that valid written contingency agreements existed for the matters at issue. Her real argument was that Williams and Cuker were not parties to those client agreements and therefore could not receive fees.

The court rejected this for lack of a “clearly established law” prohibiting a lawyer who is a party to a valid contingency agreement from sharing fees with a lawyer who was not a party to that agreement. In other words, professional-conduct requirements about the existence and form of the client agreement did not, without more, establish a categorical rule against the internal allocation ordered by the panel. Because “manifest disregard” requires a clearly governing rule that the panel ignored, the Medtronic attack failed.

3) Benicar: disagreement with contractual interpretation is not vacatur; equitable contract principles can support allocation

Berezofsky argued the panel “ignored the Dissolution Agreement” by not dividing all Benicar fees evenly. The court treated this as an attempt to re-litigate merits and contract interpretation—precisely what the FAA’s limited review forbids. The record showed the panel considered the Dissolution Agreement, evidence about the Benicar work, and the parties’ actions affecting the award.

Two features of the award mattered to the court:

  • The panel did not “completely disregard” the Dissolution Agreement, as reflected in the equal division of the initial $100,000.
  • The panel’s decision to allocate an additional $67,500 to Williams and Cuker (excluding Berezofsky) was not “totally unsupported by principles of contract construction,” Ludwig Honold Mfg. Co. v. Fletcher, because it aligned with doctrines “such as quantum meruit.”

This reasoning signals that, in dissolution-fee disputes, an arbitration panel may reconcile contract terms with equitable allocation rationales (e.g., compensation for work performed or value conferred) without inviting vacatur, so long as the award remains tethered to recognized contract construction principles.

4) Hoosick Falls: no “misconduct” where the panel enforced the mediation-first condition and issued no award

Berezofsky claimed the panel committed misconduct by dismissing Hoosick Falls and a counterclaim for nondisclosures. The court rejected the premise: the award did not mention Hoosick Falls, and the record demonstrated the panel declined to reach it because the Dissolution Agreement required mediation before arbitration. Without a decision on that subject, there was nothing to “modify or vacate,” and thus no vacatur pathway under § 10(a).

The decision implicitly treats compliance with contractual pre-arbitration steps (mediation-first) as a legitimate jurisdictional or gatekeeping basis for an arbitral tribunal to decline to adjudicate a claim injected midstream.

5) Fees and costs: “manifest disregard of the agreement” fails where the award tracks the contract’s text

Berezofsky argued that arbitration costs and fees should have been divided equally and that requiring each party to bear its own was a “manifest disregard” of the Dissolution Agreement. The court compared texts: the award required “each party [to] pay its own fees and costs of this Arbitration,” which was “virtually identical” to the Dissolution Agreement’s statement that each party is responsible for its own legal fees, costs, and expenses related to the Agreement. On that record, the panel did not disregard the agreement; it mirrored it.

Impact

Although designated “NOT PRECEDENTIAL,” the decision is instructive in several recurring arbitration contexts:

  • Practical foreclosure of “manifest disregard” arguments: The opinion exemplifies how difficult it is to vacate an award on “manifest disregard” grounds in the Third Circuit even without resolving whether the doctrine survives Hall St. Assocs. L.L.C. v. Mattel, Inc.. Appellants must identify clearly controlling law that directly prohibits what the panel did—general policy arguments and professional-conduct citations with imperfect fit will not suffice.
  • Law-firm dissolution fee disputes: The ruling supports arbitral discretion to allocate fees based on both contract text and work-based equitable principles (e.g., quantum meruit) where the record supports differentiated contributions.
  • Enforceability of mediation-first provisions: The court’s treatment of Hoosick Falls reinforces that contractually required preconditions (mediation before arbitration) can operate as a hard stop; attempts to add unmediated claims during arbitration may be declined without generating an award susceptible to vacatur/modification.
  • Drafting implications: Parties who want equal cost-sharing (or any particular cost regime) must draft it unambiguously; otherwise, “each party bears its own” language will be enforced as written.

Complex Concepts Simplified

Confirmation of an arbitration award
A court order making the arbitrators’ decision enforceable like a judgment.
Vacatur
Setting aside (canceling) an arbitration award. Under the FAA, vacatur is allowed only for narrow reasons listed in 9 U.S.C. § 10(a).
“Manifest disregard of the law”
A contested, extra-statutory vacatur theory. If it applies at all, the Third Circuit requires proof that the arbitrators knew a clearly controlling legal rule and deliberately ignored it—not merely that they made a mistake.
Arbitrator “misconduct” (FAA § 10(a)(3))
Serious procedural unfairness—e.g., refusing to hear material evidence or otherwise prejudicing a party’s rights. It is not a label for ordinary procedural rulings or for declining jurisdiction over unripe/unsubmitted claims.
Quantum meruit
An equitable principle allowing compensation for the value of work performed/benefit conferred, often used when strict contract allocation does not fully capture fair compensation for services.
Mediation-first clause
A contract term requiring the parties to attempt mediation before proceeding to arbitration; failure to satisfy it can prevent the tribunal from reaching the merits of an issue.

Conclusion

The Third Circuit’s decision affirms a straightforward but consequential rule set for arbitration challenges: FAA vacatur remains exceptional, and “manifest disregard” (even if available) demands identification of clearly established, directly governing law that the arbitrators consciously ignored. Applied to a law-firm dissolution dispute, the court upheld (i) a fee reallocation not barred by any clearly established prohibition on fee-sharing, (ii) a mixed allocation consistent with contract-construction principles and “such as quantum meruit,” (iii) the enforcement of a mediation-first prerequisite that prevented adjudication of an unmediated claim, and (iv) a costs/fees directive that tracked the parties’ own contract language. The case underscores that most post-award challenges fail not because the losing party’s arguments are implausible on the merits, but because the FAA’s review framework is designed to be final, narrow, and highly deferential.