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Diane Steiner

Senior Counsel

Diane Steiner is senior counsel in Greenspoon Marder’s Family Law practice group. She handles all aspects of family law, including custody, paternity, divorce, separation, and litigation, as well as drafting pre and post marital agreements.

In addition to a number of local bar associations, Ms. Steiner is a fellow of both the American Academy of Matrimonial Lawyers and the International Academy of Matrimonial Lawyers, where she has been appointed to a second term on the Executive Board.

Court Admissions

  • U.S. District Courts, Southern District of New York
  • U.S. District Courts, Eastern District of New York

Bar Admissions

  • New York


  • J.D., Benjamin N. Cardozo School of Law, 1989
  • B.A., M.S., Speech Pathology and Audiology, Adelphi University,
  • College of Staten Island, CUNY
    • Certification in Administration and Supervision

Professional and Community Involvement

  • American Academy of Matrimonial Lawyers, Fellow
  • International Academy of Matrimonial Lawyers, Executive Board
  • New York Supreme Court, Neutral Evaluator
  • Divorce Fee Disputes, Appointed Arbitrator

Speaking Engagements

  • Lecturer, “Matrimonial Issues,” Lawline


  • Martindale-Hubbell, Rated AV® Preeminent ™
  • U.S. News & World Report, “Best Lawyers in America, Family Law, 2012-2022
  • Super Lawyers magazine, “New York Super Lawyers,” Metro Edition, 2007, 2009-2021
  • Super Lawyers magazine, “Top 50 Women New York,” Metro Super Lawyers List, 2010
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