Guy Mangano

Hon. Guy James Mangano (Ret.)

JAMS Mediator, Arbitrator and Referee/Special Master

Case Manager
Shakiya Wright-McDuffie
T: 212-607-2761
F: 212-751-4099
620 8th Ave, 34th Floor, New York, NY 10018

Guy James Mangano is available to conduct cases virtually. JAMS is equipped to provide virtual ADR services on a variety of online platforms, including Zoom, Microsoft Teams, WebEx, and more.


Hon. Guy James Mangano (Ret.) joined JAMS' New York office following over 40 years of public service. Judge Mangano brings to the dispute resolution practice 10 years as Presiding Justice of the Appellate Division, Second Department, 10 years as an Associate Justice, 10 years as a Trial Justice, 7 years as a New York Legislator, and 10 years as a private practitioner.

ADR Experience and Qualifications

  • As a JAMS neutral, Judge Mangano has mediated and arbitrated cases involving the following issues:
    • Business/commercial
    • Class/Mass action
    • Contractual interpretation
    • Discrimination in the work place
    • Employment
    • Entertainment/Intellectual property
    • Insurance coverage
    • Personal injury
    • Professional liability

Representative Matters

  • Mediated disputes between corporate entities involving:
    • Agreements with affiliates
    • Effect of employee fraudulent acts on contract provisions, concerning whether there was authority, and if so, whether actual or apparent
    • Partnership dissolutions, buy out agreements, etc.
  • Arbitrated and mediated several property damage disputes
  • Mediated a class action matter involving an international airline over the cancellation of flights leaving passengers in multiple countries stranded
  • Mediated an intellectual property matter involving two entertainment companies over the rights to manufacturing films
  • Mediated insurance disputes between two prominent insurance companies with regards to claims involving a military government contract in Europe. Part of the successfully settled dispute was in determining which laws applied to which claims to be paid due to the international nature of the claims
  • Successfully mediated all types of personal injury cases
  • Rendered an opinion letter interpreting the provision of Welfare Fund contracts as to whether Trustees accused of wrongdoing were entitled to reimbursement for legal fees
  • The effect of termination of a major hospital waste incinerator on the original contract, leasing agreements, bankruptcy assignment agreement, and royalty agreement
  • Determine issues in a complex professional malpractice as to whether improper therapy resulted in two additional knee replacement operations or whether it was caused by other or concurrent causes
  • Arbitrated whether charges by hotel vendors for a union convention were justified or not, and the amount due
  • Completed Virtual ADR training conducted by the JAMS Institute, the training arm of JAMS
  • Lifetime Achievement Award, Kings County (Brooklyn, NY) Chapter of the Catholic Lawyers Guild, 2001
  • President, Council of Chief Judges, American Bar Association, 1996
  • Secretary/Treasurer, Council of Chief Judges, 1994-1995
  • Member, Executive Committee of the Council of Chief Judges
  • Brooklyn Bar Association
  • Coalition of Italo-American Associations, Inc.
  • Columbian Lawyers, Catholic Lawyers, Lawyers Club of Brooklyn
  • Member, Board of Directors, St. John's Alumni Association, 1975-present; (School of Law-President, 1992-1994); Member, Executive Board, St. John's University Council
  • Guest speaker, Judicial Seminar CLE Program, Unified Court System, 1998, 1999, 2000
  • Lecturer, Brooklyn Bar Association CLE seminar, 2000
  • Adjunct Professor, St. John's School of Law, 1990-1997
  • Chair, Board of Governors of New York Attorney Client Dispute Resolution Program -- established guidelines for approval, implementation, and supervision of a statewide network of local Bar programs and court programs through the administrative Judges office where needed
  • Presiding Justice, Appellate Division, 2nd Dept., Supreme Court of the State of New York, March 1990-January 2001; Justice, Appointed to Appellate Division, 2nd Department, 1979-1990; Justice, Supreme Court of the State of New York, elected 1969-1982, reelected 1982, reelected & reappointed 1997; Associate Justice, Appellate Term, 2nd and 11th Judicial Districts, 1978-1979
  • Administrative Judge, Criminal Term, Supreme Court, Kings County, 1976-1978
  • Judge, Family Court, 1965-1968
  • Member of State Senate, 1963, reelected 1964-1965
  • Member of State Assembly, 1958, reelected 1960-1962
  • Investigator and Assistant Counsel, Joint Legislative Committee, 1955-1958
  • Honorary Doctor of Law Degree, St. John's University, 1983
  • LL.B., St. John's University School of Law, 1955
  • St. John's University



Practice Areas

  • Appellate
  • Arbitration
  • Business/Commercial
  • Class Action/Mass Tort
  • Employment
  • Entertainment and Sports
  • Insurance
  • Intellectual Property
  • Personal Injury/Torts
  • Professional Liability


Available nationwide


This page is for general information purposes.  JAMS makes no representations or warranties regarding its accuracy or completeness.  Interested persons should conduct their own research regarding information on this website before deciding to use JAMS, including investigation and research of JAMS neutrals. See More