Greenberg & Greenberg is a full-service law firm with over seventy years of experience concentrating in the areas of personal injury, wrongful death and medical malpractice litigation. We also provide legal services in the areas of real estate, land use and planning, criminal defense and civil rights.



Arthur R. Greenberg has practiced exclusively in the areas of personal injury, wrongful death and medical malpractice for over five decades. Arthur is admitted to the State courts of New York, the United States Supreme Court, and the United States District Courts for the Eastern and Southern Districts of New York. Arthur is a Member Emeritus of the New York Trial Lawyers Association.

Arthur received his J.D. at New York University in 1957.

Mark D. Greenberg has litigated numerous cases in federal and state courts in New York and Florida, conducted arbitrations before the National Association of Securities Dealers, and has argued appeals before the New York Appellate Division. He is admitted to practice law in the state courts of New York, Florida and Massachusetts, the United States District Courts for the Southern, Eastern and Northern Districts of New York, and the United States District Court for the Southern District of Florida. Mark belongs to the New York Bar Association, the New York State Trial Lawyers Association, and the New York Academy of Trial Lawyers. He is on the New York State Bar Lawyer Referral Service where he is a member of the Major Personal Injury and Medical Malpractice Panels.

Mark is currently the Associate Justice for the Village of Nassau. He  has served as Town Attorney for the Town of Nassau, New York and is a member of the Zoning Board of Appeals of the Town of Nassau. He has also served as Special Prosecutor for Columbia County, New York.

Mark received his J.D., magna cum laude, from the University of Miami School of Law.

Mark is fluent in Spanish and less fluent in French.

Jonathan E. Cohen is Of Counsel to Greenberg & Greenberg. His practice focuses on land use and zoning, environmental law, real estate, construction law, and bankruptcy. He has represented a variety of clients in land-use and zoning matters. Prior to entering the field of law he was a consultant to the Columbia Land Conservancy in Chatham, N.Y. He is admitted to the practice of law in New York and Massachusetts.

Mr. Cohen is the author of A Constitutional Safety Valve: The Variance in Zoning and Land-use Based Environmental Controls (22 B.C. ENVTL. AFF. L. REV. 307 (1995). He served as Editor of the Zoning Law Bulletin, a nationally published legal newsletter, is the author of “Regulating Towers After the Telecommunications Act of 1996,” Quinlan Publishing, Inc. (1997); “Brownfields Redevelopment and Municipal Liability,” Quinlan Publishing, Inc. (1998). He also contributed to All You Ever Wanted to Know About Zoning(N.Y. Planning Federation, 3d Ed.), and authored “Zoning Tool Lets Land Be Developed for Public Benefit,” Capital District Business Review, (June, 1998).

Mr. Cohen received his B.A. in Political Science, Summa cum Laude, from the State University of New York at Albany in 1984 and his Juris Doctor from Boston College Law School in 1995.