About Gary

Gary D. Nissenbaum is a seasoned attorney admitted to practice in both the District of Columbia and New Jersey. He is the managing attorney and founding principal of the Nissenbaum Law Group, LLC, which has its principal office in Union, New Jersey, and additional offices in New York, Pennsylvania, and Texas. The firm's New Jersey office is located at 2400 Morris Avenue, Union, NJ 07083. The New York office is situated at 50 Main Street, Suite 1000, White Plains, NY 10606. The Pennsylvania office is at 1650 Market Street, Suite 3600, Philadelphia, PA 19103. The Texas office is located at 100 Crescent Court, 7th Floor, Dallas, TX 75201. The firm's main office in Union, NJ, serves as the primary location for legal services, with meetings by appointment only in the other offices.

Mr. Nissenbaum earned his Juris Doctor (J.D.) from the Benjamin N. Cardozo School of Law at Yeshiva University in 1985. Prior to law school, he completed his undergraduate studies at Yeshiva University, obtaining a degree in Economics in 1982. His educational background has equipped him with a strong foundation in both legal principles and business concepts, which he applies in his practice. With over forty years of experience, Mr. Nissenbaum specializes in complex commercial litigation and business transactions. His practice encompasses various case types, including business disputes, contract negotiations, mergers and acquisitions, and intellectual property matters.

He is involved in all stages of legal proceedings, from initial negotiations and drafting contracts to representing clients in trials and appeals. His extensive experience allows him to effectively navigate the complexities of business law, providing comprehensive legal solutions to his clients. Throughout his career, Mr. Nissenbaum has been associated with the Nissenbaum Law Group, LLC, where he has served as managing attorney and founding principal. The firm has grown to include offices in multiple states, reflecting its expanding practice and Mr. Nissenbaum's leadership. He is admitted to practice before the U.S. District Court for the District of New Jersey, allowing him to represent clients in federal cases within the state.

Mr. Nissenbaum is a member of the District of Columbia Bar, maintaining his membership to stay informed about developments in federal law. He is also involved in various professional organizations, including the New Jersey State Bar Association, where he has access to resources and networking opportunities relevant to his practice. The Nissenbaum Law Group is committed to community involvement, offering pro bono services and participating in local events to support the community. Mr. Nissenbaum is proficient in English and Hebrew, enabling him to serve a diverse clientele effectively.

Accepted Jurisdictions

District of Columbia
New Jersey

Court Admissions

U.S. District Court for the District of New Jersey U.S. District Court

Types of Cases Handled

business disputes contract negotiations mergers and acquisitions intellectual property matters

Legal Services Scope

Negotiations Drafting contracts Trials Appeals

Professional Associations

District of Columbia Bar

has membership 1991 - Current

Office Locations

Main Office

 2400 Morris Ave Suite 301 Union NJ 07083

Office 2

 1200 Route 22 East Ste 2000 Bridgewater NJ 08807

Office 3

 140 Broadway 46th Floor New York NY 10005

Office 4

 1500 Market Street 12th Floor, East Tower Philadelphia PA 19102

Office 5

 100 Crescent Court 7th Floor Dallas TX 75201