About the Attorney

At The Law Offices of Joseph D. Sullivan, clients can rely on experienced legal professionals for a variety of services including estate planning, personal injury cases, and real estate matters. Serving the communities of Cedar Knolls, NJ, and Garden City, NY, the firm is dedicated to providing dependable and trustworthy legal representation. Whether you are looking to protect your assets with a solid estate plan, seeking compensation for a personal injury, or navigating a real estate transaction, the team at The Law Offices of Joseph D. Sullivan is here to help. With a commitment to client satisfaction and a track record of success, you can trust in the legal services provided by this respected firm. Contact The Law Offices of Joseph D. Sullivan today for assistance with all of your legal needs.

Practice Areas

Estate planning attorney Personal injury attorney Real estate attorney

Client Reviews

Le Kang

1/09/2026

Mr. Sullivan is very professional and knowledgeable. He provides detailed and insightful advice and responds to all our questions very patiently. It was a great experience working with Mr. Sullivan and I would highly recommend this office's service.

Victoria Parroco

1/06/2026

We had a great experience with Atty. Josph Sullivan. The process was fast, and he took the time to clearly explain all the estate documents using real-life examples. He was courteous and friendly, and his assistant Milly was also very pleasant and easy to talk to. The office is beautiful, the rates are reasonable, and we left feeling confident and comfortable, like we had just spoken with a friend. Highly recommended.