Donald Frank


Donald Frank has focused his practice in the field of matrimonial law for more than 40 years. He represents clients in complex, high-profile matrimonial matters. He is a respected negotiator and a tireless advocate for his clients; he is also a formidable trial lawyer when it is necessary to go to court to resolve a case. Don is also a skilled appellate lawyer who has handled many appeals in his years of practice.

Donald believes that every client’s situation is unique and requires its own carefully crafted strategy. He believes that the representation of a client in their matrimonial matter is a collaborative effort. Donald understands how important it is for him to listen to the client and be as responsive as possible at all times.

Donald understands the concerns and issues posed by his clients’ marital and family law matters, and is attuned to meeting the financial and emotional needs of his clients. He negotiates and litigates on behalf of clients in the following areas:

  • Pre- and post-nuptial agreements
  • Custody and access
  • Divorce negotiation and litigation
  • Equitable distribution, maintenance, and child support
  • Hague Convention cases

Donald is a frequent lecturer and writer in the field of matrimonial law. He has also taught a law school class on matrimonial law for many years.


Donald represented the father in perhaps the most celebrated custody case. Another of his clients was recently featured in a movie. Donald also took great pride in the fact that one of his clients asked him to be his best man at his wedding after his divorce.


  • AV Preeminent, by Martindale-Hubbell
  • Listed in New York Metro Super Lawyers magazine
  • 2006–2024, Family Law in New York, listed in Best Lawyers in America©
  • 2020, “Top 500 Leading Family Lawyers,” listed in Lawdragon



  • American Academy of Matrimonial Lawyers
  • New York State Bar Association
Professional Activities

Donald has been a fellow of the American Academy of Matrimonial Lawyers since 1976, and has served on the board of managers for two terms.



  • New York


  • Lafayette College, BA
  • New York Law School, JD