Mediation services available from Signature Resolution provided by legal experts such as Greg D. Derin.

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Greg D. Derin

Mediator | Arbitrator

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“I love people, and bring that passion, years of mediation experience, and a rich understanding of history, literature, and social science to helping them resolve even the most intractable disputes.”

Case Administrator

Practice Areas

  • Anti-Trust
  • Business and Commercial Contracts
  • Civil Rights
  • Class Action
  • Corporations and Partnerships
  • Cryptocurrency/Blockchain/NFT
  • Defamation
  • Employment
  • Entertainment
  • First Amendment
  • Intellectual Property
  • Inverse Condemnation
  • Legal Malpractice
  • Patent
  • Professional Liability
  • Real Estate
  • Right of Publicity


  • J.D., University of California, Berkeley School of Law, California Law Review, Research and Book Review Editor
  • A.B., University of California, Berkeley, Phi Beta Kappa


Greg David Derin, Esq. brings more than 40 years in the legal industry to his practice at Signature Resolution as a mediator and arbitrator. For more than 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. In his role at Signature, he continues to concentrate on matters involving complex business, 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 jury trial, talent agency disputes, and a Los Angeles Superior Court class action jury trial.

Mr. Derin is a member of the dispute resolution sections of the Beverly Hills, Los Angeles County and American Bar Associations, the Association of Business Trial Lawyers, 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.


  • Mediator and Arbitrator, Judicate West (2014–2019)
  • Mediator and Arbitrator, gdd Mediation and Arbitration (2002–2014)
  • Attorney at Law, Greg David Derin (1997–2002)
  • Founding Partner, Del, Rubel, Shaw, Mason & Derin (1989–1997)
  • Associate/Partner/Litigation Managing Partner, Dern, Mason & Floum (1979–1989)

Professional Achievements and Memberships

  • Best Lawyers, Best Lawyers in America, Arbitration, Litigation – Intellectual Property and Mediation (2023)
  • Southern California SuperLawyer (2006–2023)
  • Best Lawyers in Los Angeles for Mediation (2021-2023) and Arbitration (2022-2023)
  • Top 38 Commercial Mediators in California, Who’s Who Legal (2022)
  • Member, Federal Bar Association
  • “Power Mediator, The Hollywood Reporter
  • AV rating, Martindale-Hubbell Law Directory
  • Distinguished Fellow, International Academy of Mediators
  • Fellow, Chartered Institute of Arbitrators (FCIArb)
  • Member, CPR Panel of Distinguished Neutrals (Entertainment and Employment Panels)
  • Member, World Intellectual Property Organization (WIPO) Mediation and Arbitration Panels
  • Member, Panel of Neutrals, London Court of International Arbitration
  • Member, Los Angeles Copyright Society
  • Member, Copyright Society of the USA, Los Angeles Chapter
  • Member, Los Angeles Intellectual Property Law Association