- Attorney Kahn, Kleinman, Yanowitz & Arnson Company, Legal Professional Association, Cleveland, 1991-1996. Partner Ulmer & Berne LLP, since 1996. Chair Intellectual Property and Technology.
Member steering committee Northwestern University Dance Marathon for United Cerebral Palsy, Evanston, Illinois, 1984-1985. Member American Bar Association (member business law section committee on the law of commerce in cyberspace since 1996, member planning committee and faculty National Institute on Representing High Technology Companies 1998), Cleveland Bar Association (chairman securities institute panel on electronic securities practice 1998, chairman technical committee 1998), Phi Delta Phi, Pi Sigma Alpha, Alpha Lambda Delta.