The Hon. Marc Marmaro has years of mediation and legal experience and works with Signature Resolution.

Hon. Marc Marmaro (Ret.)

Mediator | Arbitrator | Judicial & Discovery Referee

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“Before the mediation, I carefully review the papers from both sides so I can help each side get a clear-eyed view of the case, with its relative strengths and areas of concern. My goal is to find common ground and help put the parties in a position where the case can be resolved. I am a great believer in closure.”

Case Administrator

Practice Areas

  • Business and Commercial Contracts
  • Employment
  • Family Law
  • Fee Dispute
  • Habitability
  • Insurance
  • Intellectual Property
  • Landlord/Tenant
  • Legal Malpractice
  • Personal Injury
  • Premises Liability
  • Product Liability
  • Professional Malpractice
  • Real Estate


  • J.D., New York University School of Law, Order of the Coif
  • B.A., The George Washington University


Judge Marmaro specializes in business and commercial litigation, as well as intellectual property, entertainment, securities, business dissolution, and labor/employment. While on the bench, Judge Marmaro also presided over family law and general and complex civil litigation. Judge Marmaro has a reputation for creating bridges to bring parties together, seeing both sides of an argument, and understanding the complexity and sensitivity of the matters he’s resolving. 
Judge Marmaro was a partner and founding member of Jeffer, Mangels, Butler and Marmaro (now Jeffer, Mangels, Butler and Mitchell), where he tried numerous cases to verdict and judgement. 
Finally, after more than 35 years as a litigator in state and federal courts, he was appointed to the Los Angeles Superior Court, where he served for nearly eight years. 


  • Judge, The Superior Court of California, County of Los Angeles (2010–2018)
  • Founding Partner, Jeffer, Mangels, Butler and Marmaro (now Jeffer, Mangels, Butler and Mitchell) (1981–2010)
  • Partner, Manatt, Phelps and Phillips (1979–1981)
  • Assistant United States Attorney, Southern District of New York (1975–1978)
  • Associate, Debevoise & Plimpton LLP (1973–1975)
  • Law Clerk to Hon. John J. Gibbons, Third U.S. Circuit Court of Appeals (1972–1973)

Professional Achievements and Memberships

  • Fellow, American College of Trial Lawyers (2009)
  • Top 100 Lawyers in California, Daily Journal (2005)
  • Top 10 Intellectual Property Litigator’s for Entertainment, Daily Journal (2008)
  • Attorney of the Year, California Lawyer (2004)
  • Southern California’s Best Lawyers, Los Angeles Times Magazine