Engineering laboratory instructor University Texas, 1957. Engineer Redstone Arsenal, Army Ballistic Missile Agency, 1957. Engineer, business analyst Exxon Corporation, New York City, 1957-1964.
Research assistant Harvard Business School. With Smithsonian Astrophysical Observatory and Educational Testing Service, New Jersey, 1961-1962. Attorney, engineer Allied Corporation, New York City, 1964-1967.
Associate Arthur, Dry, Kalish, Taylor & Wood, 1967-1969, Valicenti, Leighton, Reid & Pine, New York City, 1969-1970. Instructor faculty Columbia University, 1972-1981, adjunct professor business law and taxation, 1970-1971, 82-98. Of counsel Delson & Gordon, 1973-1987.
Sole practitioner Harrison, New York, since 1988. Lecturer, consultant American Institute of Certified Public Accountants, Institute Internal Auditors, New Haven Chamber of Commerce, Citibank, Manufacturers Hanover Trust Company, Harcourt, Brace, Jovanovich, Inc., Prudential-Bache, Drexel, Burnham & Lambert, E.F. Hutton. Volunteer instructor volunteer income tax program, Columbia University, New York City, 1991-1992.
Visiting professor Stanford University, Palo Alto, California, 1978, Harvard University, Boston, 1981. Advisory board American Law Rev, since 2004.
- The Lawyer Guide to Income Tax and GST/HST, 2011 Edition
- A reliable one-stop reference for tax issues encountered by legal practioners.
Author: Business Income Tax Materials, 1994. Co-author: Business Organizations: Corporations, General Practice in New York, 1998, Business/Corporate Law and Practice, 12th edition, 2010. Editor: The Compleat Lawyer, 1985-1988, Tax Lawyer, 1982-1995.
Editor-in-chief: New York International Law Review, 1988-1991, chair advisory board, since 1992. Editor-in-chief: International Law Practicum, 1987-1991. Member advisory board American Law Review, since 2004.
Contributor chapters to books, articles to professional journals.
Consultant council City of New York, 1971-1972, Manhattan Community College, 1974-1976. Lieutenant United States Naval Reserve, 1957-1959. Member American Association for the Advancement of Science, American Bar Association (chairman committee on taxation general practice section 1978-1983, chairman committee on corporation banking and business law. general practice section 1985-1987, moderator, chair professional education programs 1986, 87), American Society of Mechanical Engineers, National Society of Professional Engineers, New York State Bar Association (general practice section, chairman tax law committee 1983-1992, chairman business law committee 1985-1988, international law & practice section, chairman publications committee 1988-1991, coordinator study committee on medical malpractice legislation, 1980-1982), Association Bar City New York, New York Academy of Sciences, Mensa, Tau Beta Pi, Pi Tau Sigma, Phi Eta Sigma, American Association for the Advancement of Science.