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Honorable Mark Aceto

Maricopa County Superior Court

From 1995 to 2015, Mark Aceto served as a Superior Court Judge in Maricopa County.  Mark presided over civil calendars for nine and a half years.  For two years, beginning in 2006, he served as the Presiding Judge of the court’s civil department. He also presided over calendars in the court’s family, probate and criminal departments.


Mark graduated with honors from both Villanova University in 1977 and from the Arizona State University College of Law in 1980.


After working as a prosecutor for seven years, Mark joined the Liability Management Section of the Arizona Attorney General’s Office in 1987.  For the next eight years, his practice focused on defending physicians employed or insured by the state.  While the great majority of Mark’s clients were attending and resident physicians at the University of Arizona College of Medicine, Mark was also called on to defend other state entities such as Children’s Rehabilitative Services.


During his last six years at the AG’s Office, Mark served as a unit chief.  In that capacity, he continued to represent doctors in medical negligence cases.  Additionally, Mark supervised the other assistant AGs who handled malpractice cases and had oversight responsibility on cases assigned to outside counsel.


As a lawyer, Mark tried over 70 jury trials.  As a judge, Mark tried over 300 jury trials.


The majority of Mark’s mediation training came on the bench in the context of settling cases after the parties had participated in failed mediations.  In 2004, Mark completed a 40-hour mediation course sponsored by the Judicial Division of the American Bar Association.  In 2014, he also completed a week of mediation training at the National Judicial College.