Diane Rosen

Diane Rosen, Esq. PLLC

911 Park Avenue
New York, New York 10075


Business, Child Custody, Commercial, Construction, Contract, Co-Parenting, Juvenile, Partnership Disputes, Real Estate

Diane Rosen is Of Counsel to Ortoli Rosenstadt LLP.

Formerly of Weil Gotshal & Manges, Skadden, Arps, Slate, Meagher & Flom, Alter & Rosen LLP, Diane specializes in real estate and corporate transactions, has expertise in U.S. copyright law and is a mediator and conflict coach with a specialty in custody and visitation.

She has been a member of the New York Bar since 1982. In addition to practicing law, she is the author of The Grownup’s Guide: Living with Kids in Manhattan and was the Founding Vice President of Girls Learn International, a non-profit organization that works to combat the global crisis in girls’ education.

Diane serves on the boards of Planned Parenthood NYC; the Cornell University Council, the ILR School Dean’s Advisory Council, the President’s Council of Cornell Women and the Cornell Council on Sexual Violence; the New York French American Charter School and the advisory boards of the Scheinman Institute on Conflict Resolution and the Mt. Sinai Adolescent Health Center. She has previously served on the Board of Trustees of the Trinity School in Manhattan.


  • Appreciative Inquiry: Leveraging Strengths for Transformative, Lasting Change
  • Dispute Resolution Commercial Mediation Training Program
  • Securities Arbitration and Mediation CLE
  • Parent Coordinator Training
  • Custody and Visitation Mediation
  • Special Education Mediation Training
  • Conflict Resolution Coach
  • Mediation Training
  • Commercial and International Alternative Dispute Resolution
  • Employment Law Mediator Training



  • American Bar Association
  • International Positive Psychology Association
  • New York City Bar Association
  • New York State Bar Association
  • New York State Dispute Resolution Association


London School of Economics – General Course, 1977

Cornell University ILR School – B.S.,1978

Georgetown University Law Center – J.D., 1981

NYU Stern School of Business – MBA, 1994

University of Pennsylvania – MAPP, 2016


New York, 1982

911 Park Avenue
New York, NY 10075

P: 917-855-8545
E: [email protected]