-President, Hebrew Free Loan Society of New York
-President, Jewish Community Relations Council of Greater New York, 2001-2004
Teaching
-Columbia University, Adjunct Associate Professor, 1974-1977; Professor, 1986, 1992
-University of Wisconsin Law School, Visiting Professor, Summers 1967 (Corporations) and 1998 (Mergers and Acquisitions)
-University of Connecticut Law School, Lecturer, Securities Regulation and Corporate Finance, 1970-1973
-Russell Sage Foundation Resident Fellow in Law and the Social Sciences, 1965