Mark I. Harrison
Osborn Maledon, PA, Phoenix

Commercial LitigationFor more than 25 years Mr. Harrison has represented corporate, governmental, insurance, financial institution clients and individual professionals in a variety of litigation matters, much of it complex and some nationwide. He has tried more than 60 cases to verdict and has argued more than 80 appeals in state and federal appellate courts. He also has served as president of the American Academy of Appellate Lawyers and the Association of Professional Responsibility Lawyers.Throughout much of his career, Mr. Harrison was actively involved in tort and insurance litigation and continues to represent insurance carriers and their insureds in malpractice cases. In addition, he has a background in antitrust law. He served as special antitrust counsel to the Arizona attorney general (1968-74) and has frequently represented Fortune 500 companies in major antitrust litigation. In late 1992, he served as a member of the Clinton Administration’s Transition Team for the Antitrust Division of the Department of Justice.For many years, Mr. Harrison has devoted a significant part of his practice and professional activities to ethics and malpractice prevention. He has represented lawyers and other professionals in licensure andmalpractice proceedings and has frequently written and testified as an expert in malpractice litigation. In 1996, he was awarded the Michael Franck Professional Responsibility Award by the American Bar Association. For the past several years, Mr. Harrison has regularly presented programs about ethics and professionalism to corporate counsel and bar association groups locally and nationally. He was appointed by the Supreme Court of Arizona to serve as the first chair of that state’s professionalism course, now required of all lawyers. Mr. Harrison has served as president of the State Bar of Arizona, the Arizona Bar Foundation and the National Conference of Bar Presidents.EducationLL.B., Harvard University, 1960A.B., Antioch College, 1957