Hon. Donald Horowitz

Mediator, Arbitrator

Expertise Areas:

  • Commercial
  • Civil & Disability Rights
  • Professional Negligence
  • Technology

WAMS Mediator Certification: 1988


Don Horowitz was a King County Superior Court Judge and Senior Assistant Attorney General for the State of Washington, serving as Chief Counsel for the Department of Social and Health Services. After retiring from his private law practice in 1991, he has served as a mediator and arbitrator while remaining involved in a broad range of community service projects.

Mr. Horowitz has authored legislation in a variety of areas, including the Mandatory Child Abuse Reporting Act; Crime Victim Compensation Act; Adoption Subsidy Act; the law allowing emergency medical care for children whose parent or guardian is unavailable; and the law requiring interpreters for persons with hearing disabilities in courts and other legal proceedings. He has been an instructor for the National Institute of Trial Advocacy and an adjunct professor of Civil Trial Practice and Consumer Protection at Seattle University School of Law. He has served as a mediator for the United States District Court for the Western District of Washington and a judge pro tem and arbitrator for King County Superior Court. In 2010, Mr. Horowitz was awarded the WSBA’s highest honor: its Award of Merit.

Don Horowitz was a founder and President of the Central Area Mental Health Center, served on the Board of Directors of the Washington State Endowment for Equal Justice and Korematsu Center for Law and Equality and on the Senior Advisory Board of the University of Washington Information School. He was an International Monitor of Hearings of the Truth and Reconciliation Commission of the Republic of South Africa in 1997 and helped develop the information legacy of the International Criminal Tribunal for Rwanda in 2008. Mr. Horowitz also founded Seattle SCORES, an after-school program for elementary school children that combines soccer, creative writing for literacy and community service.

Education: USA&M Mediator Training, 1988; WAMS Advanced Mediator Training, 1998, 1999; Yale Law School, LLB, 1959; Columbia University, BA, 1956.

Affiliations: Washington Arbitration & Mediation Service, Washington State Bar Association; King County Bar Association; International Bar Association.

PDF Version of the Bio