Law Clerk to Judge John R. Bartels, U.S. District Court, Eastern District of New York, 1965-1966. Assistant U.S. Attorney, Criminal Division, U.S. Attorney's Office, Southern District of New York, 1970-1975. Chief Assistant, New York Special State Prosecutor, Nursing Home Investigation, 1975-1976. Chief, Civil Division, 1983-1985 and Chief, Criminal Division, 1985-1988, U.S. Attorney's Office, Southern District of New York. Commissioner, Department of Investigation, New York City, 1994-1996. Chair, New York City School Construction Authority, 1996-2002. Director, Lower Manhattan Development Corporation, 2001—.