-American Bar Association, Vice Chairman, Committee on Partnerships, Joint Ventures and Other Investment Vehicles, 1988-1995
-American College of Real Estate Lawyers, Board of Governors
-American Law Institute
-American College of Mortgage Attorneys
-Board of Advisors, Real Property Law, Practicing Law Institute
-New York State Bar Association, Member, Real Property Law Section; Committee on Financing and Liens, 1987-Present; Committee on Condominiums and Cooperatives, 1987-Present
-Briarcliff Manor Planning Board, 1995-Present
-International Health Network Society, Vice Chairman, 1995-2000
-Global Advisory Board, Endeavor, 2004-2006