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With more than 40 years in the legal industry, Greg David Derin, Esq. joined Signature Resolution as a mediator and arbitrator in 2020. For nearly 20 years, Mr. Derin has successfully assisted parties in resolving more than a thousand complex matters. He is often called upon to resolve disputes after previous attempts have failed. Parties consistently attribute their successful resolutions to Mr. Derin's persistence, attentive and open facilitation of a process designed to encourage creative solutions, and his broad substantive knowledge and experience. In his role at Signature, he continues to concentrate on matters involving contract, fraud, entertainment, intellectual property (copyright, trademark, idea submission), trade secret, right of publicity, unfair business practices, employment, class actions, partnership, real estate and legal malpractice.

He is experienced in all phases of litigation and has handled matters before federal and state trial or appellate courts in California, New York, Illinois, Pennsylvania and other jurisdictions. He has appeared before the California Labor Commissioner, the tribunals of the Screen Actors Guild, American Federation of Television and Radio Artists, Directors Guild of America, Writers Guild of America, Major League Baseball Players Association, California Regional Water Quality Control Board, California State Water Resources Control Board and the National Association of Securities Dealers. Mr. Derin has tried cases as varied as a four-month construction defect case, talent agency disputes, and a Los Angeles Superior Court class action. Mr. Derin is a member of the dispute resolution sections of the Beverly Hills, Los Angeles County and American Bar Associations, the Sports Lawyers Association and the Federal Bar Association. He is a past chair of the California State Bar Standing Committee on Alternative Dispute Resolution.

Twice each year for eight years, Mr. Derin assisted mediation pioneer Harvard Law School Professor Frank E.A. Sander, and Washington, D.C. mediators Linda Singer and Michael Lewis in teaching the prestigious Mediation Workshop at the Harvard Negotiation Institute.Parties consistently attribute their successful resolutions to Mr. Derin’s persistence, creative solutions and his deep substantive knowledge and experience.


  • 633 West Fifth Street, Suite 1000
    Los Angeles, CA 90071


  • English


  • University of California Berkeley, J.D., graduated 1979
  • University of California Berkeley, A.B., graduated 1976

Bar Admissions

  • California, 1979


  • Chartered Institute of Arbitrators (FCIArb) - Fellow
  • Copyright Society of the USA, Los Angeles Chapter - Member
  • CPR Panel of Distinguished Neutrals (Entertainment and Employment Panels) - Member
  • International Academy of Mediators - Distinguished Fellow
  • Los Angeles Copyright Society - Member
  • Los Angeles Intellectual Property Law Association - Member
  • Panel of Neutrals, London Court of International Arbitration (LCIA) - Member
  • Sports Lawyers Association - Member
  • World Intellectual Property Organization (WIPO) Mediation and Arbitration Panels - Member

Court Admissions

  • United States Supreme Court
  • United States Court of Appeal for the Federal Circuit
  • United States Court of Appeal for the Ninth Circuit
  • United States District Court for the Central District of California
  • United States District Court for the Northern District of California
  • United States District Court for the Southern District of California
  • United States District Court for the Eastern District of California

Recognized in The Best Lawyers® in America 2023 for work in:

  • Arbitration
  • Litigation - Intellectual Property
  • Mediation


  • AV rating, Martindale-Hubbell Law Directory

    “Power Mediator,” The Hollywood Reporter

    Southern California SuperLawyer (2006 – Present)

    Phi Beta Kappa, Alpha Chapter, University of California, Berkeley

Additional Areas of Practice:

  • International Arbitration - Commercial
  • Media Law

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