Mr. Lieberman is one of New York’s most well-regarded trial lawyers.

In 2023, after more than 40 years of trying cases primarily in Westchester County, Mr. Leiebrman became one of the three founding partners of Rottenstreich Lieberman Farley LLP.  Before forming RLF, Mr. Lieberman served as managing partner of the Westchester Office for his former firm, Cohen Clair and was a founding partner of Lieberman LeBovit, PLLC. Among many other professional accomplishments, Mr. Lieberman has acted as lead trial counsel in several of the largest and most complex matrimonial actions to be litigated in Westchester County and the State of New York. Mr. Lieberman also frequently acts as trial counsel to other firms in complex financial and custody litigation.

In addition to his sterling record at trial, Mr. Lieberman has a broad and successful appellate record, featuring numerous decisions routinely relied upon by Courts throughout the State. These landmark decisions include: Feighan v. Feighan, 180 A.D.3d 873 (2d Dep’t 2020) (enjoined deposition of the parties’ former estate planning attorney); Hongach v. Hongach, 44 A.D.3d 664 (2d Dep’t 2007) (petition for custody modification insufficient to warrant a hearing); Haspel v. Haspel, 78 A.D.3d 887 (2d Dep’t 2010) (modified calculation of enhanced earnings and is one of several cases that ultimately led to changes in the law); Johnson v. Johnson, 303 A.D.2d 641 (2d Dep’t 2003) (reversed trial court’s delegation to the mother of control over visitation rights and drug testing for the father); and King v. King, 225 A.D.2d 697 (2d Dep’t 1996) (affirmed trial court’s award of sole legal custody to the father due to the mother’s interference).

Mr. Lieberman’s track record frequently permits him to achieve his client’s results without the need for litigation. Though a fierce advocate and litigator, Mr. Lieberman’s focus is on getting his clients across the finish line in an efficient manner that is cognizant of the family dynamic that will exist after the action concludes.

Mr. Lieberman previously served as the coordinator for the Ninth Judicial District Grievance Committee’s Mediation Program. He has provided volunteer services to the Westchester County Pro Bono Program for divorcing litigants and served as the President of his local Yorktown Bar Association for two years. Mr. Lieberman is a published Law Review Author as well. For 35 years, he coached youth and high school Yorktown lacrosse. Mr. Lieberman speaks to the Bar Associations on trial technique and issues arising in divorce litigation.

Mr. Lieberman is a graduate of Franklin & Marshall College and Quinnipiac University School of Law, where he was an Editor of the Law Review, published and received the award for Outstanding Legal Scholar.

Mr. Lieberman resides in Yorktown, New York with his wife and three dogs.


Quinnipiac University School of Law, JD (Law Review)
Franklin & Marshall College, Bachelor’s degree