When you need mediation and arbitration help Signature Resolution has neutrals such as the Hon. Patrick J. Walsh.

Hon. Patrick J. Walsh (Ret.)

Mediator | Arbitrator | Special Master | Discovery Referee

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“I find that the experience I gained handling thousands of civil cases as a lawyer at the Department of Justice and the U.S. Attorney’s Office and as a Magistrate Judge on the U.S. District Court has really helped me quickly get to the heart of the matter in my ADR cases.”

Case Administrator

Practice Areas

  • Business and Commercial Contracts
  • Civil Rights
  • Employment
  • Healthcare
  • Insurance
  • Intellectual Property
  • Legal Malpractice
  • Patent
  • Product Liability
  • Real Estate
  • Securities
  • Special Master Duties


  • J.D./MBA, The University of Illinois (Chicago)
  • B.A., Northern Illinois University


While on the bench, Hon. Patrick J. Walsh (Ret.) successfully oversaw and settled thousands of matters related to business disputes, civil rights, employment, intellectual property, environmental, forfeiture, contracts, and class actions.

Prior to his appointment to the bench, Judge Walsh served as an Assistant United States Attorney in Los Angeles as a federal prosecutor from 1996 to 2001 and on the civil side from 1992 to 1996. Before that, he worked as a trial attorney for the United States Department of Justice.

Judge Walsh began his career as a law clerk in the U.S. District Court for the Commonwealth of the Northern Mariana Islands in Saipan, where he served from 1985 to 1989. In addition to clerking for district judges Alfred Laureta and Alex R. Munson on that court, he also served as Judge Munson’s law clerk during Judge Munson’s tenure as the Chief Justice of the High Court of the Trust Territory of the Pacific Islands.

Judge Walsh is known for his understanding and handling of civil issues. Parties say he treats each matter uniquely and strives to bring a sense of equity to each case before him.

Judge Walsh was an adjunct professor at USC Gould School of Law from 2008-2020.


  • Chief, United States Magistrate Judge (2016–2020)
  • Judge, United States Magistrate Judge (2001–2020)
  • Federal Prosecutor, U.S. Attorney (1992–2001)
  • Trial Attorney, U.S. Department of Justice (1989–1992)
  • Law Clerk, U.S. District Court for the Northern Mariana Islands (1985-1989)

Professional Achievements and Memberships

  • Member, National Academy of Distinguished Neutrals (2022)