Mediator's Profile


Colin Campbell

Business Name: Osborn Maledon, PLC

Colin Campbell was appointed a Judge of the Maricopa County Superior Court in 1990 after twelve years of practicing both civil and criminal trial law. During his 17 years as a Judge, he sat on assignments related to nearly every area of law including civil, criminal, juvenile, and family matters. He was Presiding Judge from 2000 to 2005.

After his retirement from the Bench, Colin returned to Osborn Maledon in 2007 where he maintains an active personal injury tort, commercial litigation, and public law trial practice.  Colin is praised for having “extensive trial experience from the other side of the bench” and offers clients a unique perspective as a retired Judge returning to private practice.

Areas of Focus

  • Mediation
  • Arbitration
  • Discovery Referee
  • Early Neutral Evaluation
  • Fact Finding
  • Mini-Trial Judge
  • Special Master


  • University of Arizona, J.D., summa cum laude, 1977
  • Northwestern University, B.S., 1974


  • State Bar of Arizona, Professionalism Course Committee, Member, 1994-1995
  • State Bar of Arizona, Legal Services Committee, 1985-1992; Co-chairman, 1988-1989, 1991-1992
  • State Bar of Arizona, Committee on the Professional Rules of Conduct, 1987-1992; Chairman 1989-1991


  • Adjunct Professor, ASU College of Law, Spring 2012, Fall 2013
  • Adjunct Professor, Phoenix School of Law, 2006-2010
  • Judicial Ethics Advisory Committee, Member, 1999-2001
  • Arizona Emeritus Program, Advisory Committee, Member, 1996-1999
  • Arizona Judicial College, Board of Directors, 1997-1999
  • Supreme Court Committee to Study the Criminal Justice Committee in the Arizona Superior Court, Member, 1993
  • Arizona Bar Foundation, Board of Directors, 1987-1994; President of Board, 1992
  • University of Arizona, College of Law, Board of Visitors, Member, 1991-
  • Arizona Association for Public Interest Law Corporation, Board of Directors, 1989-1990; President of Board, 1990
  • Volunteer Lawyers Program, a joint project of Community Legal Services and the Maricopa County Bar Association, Advisory Board of Directors, 1983-1987
  • Community Legal Services, Phoenix, Arizona; Board of Directors, 1981-1987; President of Board, 1985-1986

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