- Associate Cravath, Swaine & Moore, New York City, 1955-1961. Partner Stroock & Stroock & Lavan, 1962—1997, of counsel, since 1998.
Trustee Aeroflex Foundation, New York City, since 1965, Harkness Foundation for Dance, New York City, since 1976, Wilkes University, Wilkes-Barre, Pennsylvania, since 1980, Hospital for Joint Diseases Orthopaedic Institute, New York City, since 1980, Weininger Foundation, since 1985, New York University Medical Center, since 1994, New York City Center, since 1995, School American Ballet, since 1997, Brooklyn Academy Music, since 2004. Chairman board trustees Hospital Joint Diseases Orthopaedics Institute, 1994—2005. Member New York State Bar Association, Association of Bar of City of New York.