He has a B.A. in social ecology from the University of California, Irvine and his law degree from Hastings College of the Law in San Francisco, California. He has been practicing law since 1980. Over the years, Mr. Gillett has been a civil litigator, congressional aide, and lobbyist. In each of these capacities, he has worked with scores of consulting technical experts, including arborists. In 2005, Mr. Gillett established his current solo firm, representing individuals and small businesses, including tree care companies. His practice focuses on tree law, boundary disputes, real estate litigation, environmental contamination, workplace safety, and administrative proceedings.