About John Peter McEntee

John P. McEntee, Co-Managing Shareholder of Greenberg Traurig’s Long Island office, is an experienced trial lawyer who has tried dozens of cases to verdict and has argued dozens of appeals. Recognized by Super Lawyers and Best Lawyers in America for commercial and business litigation, John represents public and privately-held businesses, financial institutions, professional sports franchises, municipalities, not-for-profit organizations, and individuals in a broad variety of commercial and business disputes. He is a past President of the Nassau County Bar Association and chaired its Commercial Litigation Committee. Prior to entering private practice, John served as an Assistant District Attorney in Nassau County (District Court, County Court, and Rackets Bureaus) and as an Assistant Deputy Attorney General with the New York State Organized Crime Task Force.

Recognition & Leadership

Awards & Accolades

•Listed, The Best Lawyers in America, Commercial Litigation, 2025-2026
•Recognized, New York Law Journal, Highest Jury Verdict in New York State ($100,361,000), 2002
•Listed, Herald Community Newspaper, Top Lawyers of Long Island, 2022
•Listed, Super Lawyers magazine, New York Super Lawyers, 2007-2010, 2012-2025
•Honoree, Nassau County Bar Association, “Access to Justice,” 2016
•Recognized, Long Island Business News, “Leadership in Law Award,” 2015
•Selected, Long Island Business News, “Who’s Who in Law,” 2015
•Recognized, Touro Law School, “Public Interest Attorney of the Year,” 2011
•Rated, AV Preeminent 5.0 out of 5.0

 

Awards

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Services

Areas of Law

  • Litigation
  • Commercial Litigation
  • Other 2
    • Arbitration & Mediation
    • Mergers & Acquisitions Disputes

Practice Details

  • Firm Information
    Position
    Shareholder
    Firm Name
    Greenberg Traurig, LLP
  • Representative Cases & Transactions
    Cases
    Experience: Representative Matters: Obtained the dismissal of shareholder class actions alleging breach of fiduciary duty by the Board of Directors of a publicly-held bank in connection with a bank merger.
    Obtained a jury verdict exceeding $100,000,000 in connection with the murder of an on-duty New York City police officer.
    Obtained the dismissal of class action claims against a member of the National Hockey League relating to the sale of playoff tickets.
    Obtained the dismissal of claims against a member of the National Hockey League for breach of contract arising from a league-directed player lockout.
    Obtained the dismissal of claims against a member of the National Hockey League for employment discrimination
    violation of the Fair Labor St
    ards Act.
    Obtained the dismissal of breach of contract claims against a member of the National Hockey League relating to the operations of the team's practice facility.
    Obtained a declaration of insurance coverage for a member of the National Hockey League for claims involving the team's home arena.
    Obtained a defense verdict for a Fortune 500 computer software company in a claim for breach of contract. Defended on appeal.
    Obtained a defense verdict for a Fortune 500 computer software company dismissing claims for sexual discrimination, sexual harassment,
    unlawful retaliation.
    Obtained a directed verdict for a Fortune 500 computer software company dismissing claims brought by a former sales representative to recover sales commissions.
    Obtained the dismissal of defamation claims against a Fortune 500 computer software company for statements in the corporation's annual report to shareholders. Defended on appeal.
    Obtained an arbitration award dismissing claims against a publicly-held health care company for misappropriation of mainframe computer software algorithms
    system architecture.
    Obtained an arbitration award dismissing claims against a prominent law firm by a former partner for compensation in excess of the amount due to the partner under the firm's partnership agreement.
    Obtained a verdict exceeding $10 million on behalf of two medical testing companies against two professional corporations
    a medical testing company for breach of contract.
    Obtained a defense verdict dismissing claims of self-dealing
    breach of fiduciary duty against the trust division of a national bank. Defended on appeal.
    Obtained a $4 million recovery for a minority shareholder in a closely-held corporation after a three-week trial over the valuation of corporate assets.
    Obtained, in a pro bono action on behalf of a sexual assault victim, a substantial jury verdict under New York's 'Son of Sam' law. Defended on appeal.
    Obtained a defense verdict for a commercial real estate owner dismissing claims the owner unreasonably refused to consent to the assignment of a lease of a petroleum storage facility.
    Obtained the dismissal after trial of claims for breach of contract
    unjust enrichment seeking one-half ownership of a national distributor of prescription
    OTC pharmaceuticals in addition to money damages exceeding $6 million.
    The above representations were h
    led by Mr. McEntee prior to his joining Greenberg Traurig, LLP.
    Government Experience: Assistant District Attorney, Nassau County (District Court, County Court,
    Rackets Bureaus), 1985-1989
    Assistant Deputy Attorney General, New York State Organized Crime Task Force, 1988-1989
  • Additional Links

Experience

  • Bar Admission & Memberships
    Admissions
    1986, New York
    U.S. District Court for the Northern District of New York
    U.S. District Court for the Eastern District of New York
    U.S. District Court for the Southern District of New York
    U.S. Court of Appeals for the Second Circuit
    Memberships

    Professional & Community Involvement

    •Board of Trustees, Molloy University
    •Chair, 2018-2025
    •Member, 2013-2025
    •Nassau County Bar Association
    •President, 2014-2015
    •Chair, Commercial Litigation Committee, 2017-2019
    •Member, Board of Directors, 2016-Present
    •Member, Judiciary Committee, 2023-Present
    •Counsel, Committee on Grievances, U.S. District Court for the Eastern District of New York, 2025
    •Member, New York State Independent Judicial Election Qualification Commission, 10th Judicial District, 2016-2020
    •Member, House of Delegates, New York State Bar Association, 2010-2015
    •fellow, New York State Bar Foundation, 2008-Present
    •President, Nassau Bar Foundation, 2015-2017
    •Member, Board of Directors, Federal Bar Association, Eastern District of New York Chapter, 2008-Present
    •Member, Council of Governing Boards, New York State Commission on Independent Colleges and Universities, 2016-2021

  • Education & Certifications
    Law School
    St. John's University School of Law
    J.D.
    Other Education
    The College at Brockport, State University of New York
    B.S.
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Attorneys FAQs

  • Is this attorney admitted to practice in any U.S. Federal Courts?
    John Peter McEntee is admitted to practice before the United States Court of Appeals for the Second Circuit, United States District Court for the Eastern District of New York, United States District Court for the Northern District of New York and United States District Court for the Southern District of New York.
  • Is this attorney Martindale-Hubbell Peer Review rated?
    Yes, John Peter McEntee has a 5.0 Peer Rating from Martindale-Hubbell.
  • How many attorneys are in this law firm?
    Greenberg Traurig, LLP has 2750 attorneys at this location.
  • Does this attorney maintain a practice in more than one location?
    Yes, John Peter McEntee has a presence in Bridgehampton, NY.
  • What law school did this attorney attend?
    John Peter McEntee attended St. John's University School of Law.