Marc represents individuals and family businesses, as well as banks and trust companies, in trust and estate matters. His practice includes domestic and international estate and tax planning, estate litigation, trust and estate administration, and the formation and succession of business and charitable organizations. Before joining Sullivan, Marc was a partner with Dewey & LeBoeuf LLP.

Bar & Court Admissions

  • New York
  • New Jersey
  • Florida
  • U.S. Tax Court


  • J.D., New York Law School
  • B.S., Seton Hall University

Community Engagement

  • American Bar Association
  • Association of the Bar of the City of New York
  • New Jersey Bar Association

Awards & Honors

  • Best Lawyers in America® (2021)


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