American Bar Association, Real Property Probate and Trust Law Section: Co-Chair: Committee on Government Submissions; Secretary, Probate and Trust Law Section, 1988-1990; Chairman, Generation Skipping Tax Planning, 1981-1988
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Association of the Bar of the City of New York, Member, Surrogates Court Committee, (1999-2003); Estate and Gift Tax Committee (2003-Present)
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International Academy of Estate and Trust Law
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New York State Bar Association, Member, Tax Section
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Treasurer, Board of Governors of New York College of Osteoporosis Medicine