2000-2012: Chair of New York Environmental Practice, Paul Hastings LLP
1994-2000: Chair of Environmental Department, Battle Fowler LLP
1981-1994: Head of Environmental Law Group, Holtzmann, Wise & Shepard, New York, N.Y.
1977-1981: Ginsburg, Feldman and Bress, Washington, D.C.
1975-1977: Bureau of Consumer Protection, Federal Trade Commission, Washington, D.C.
1970-1972: Office of Senator Frank E. Moss, United States Senate, Washington, D.C.