The Garden City Center Building
100 Quentin Roosevelt Boulevard
Garden City, NY 11530

Matthew Seidner - Divorce Attorney Long Island

Principle/Senior Attorney

College Attended


  • Yeshiva University
    Benjamin N, Cardozo School of Law (J.D.)

  • State University of New York at Stony Brook (B.A.)

    Matthew S. Seidner, Esq. is the founder of the Law Offices of Seidner & Associates, PC. The firm was built upon the premise that when being hired to represent your family only the best results are acceptable. The only thing that parallels Mr. Seidner’s winning record in court is his unwavering dedication to his clients. Whether negotiating or litigating a simple or highly complex matter, Mr. Seidner’s only objective is to provide the maximum results the law will afford in each and every situation. Unlike almost all other attorneys practicing family or elder law on Long Island, Mr. Seidner was trained at two of the largest and most prestigious law firms in the country. Mr. Seidner believes that the testimonials posted on the firm’s website speak for themselves about the results achieved with this firm.

    Before forming the firm over a decade ago, Mr. Seidner was an associate at Fitzpatrick, Cella, Harper & Scinto and Quinn, Emmanuel, Uroquart & Hedges where he represented many clients including several billion-dollar companies on some of the highest dollar-value litigations in the country at the time. Mr. Seidner was a dual-academic scholarship recipient at a highly selective law school and was selected to be an Editor of a law journal and student representative to meet with visiting dignitaries including Heads of State such as Bill Clinton and Benjamin Netanyahu. Mr. Seidner has also met with many of the nation’s leading business leaders and has raised hundreds of thousands of dollars for charities including Project Violet which is on the cutting edge of children’s brain cancer surgery research.

    Matthew S. Seidner has co-authored various briefs before The Court of Appeals for the Federal Circuit and the United States Supreme Court. He is Peer-Rated as “Preeminent” by Martindale-Hubble, is rated as a “Super Lawyer”, and has a 10/10 rating on Avvo. Mr. Seidner has taught Continuing Legal Education for LawLine and consistently received one of the highest peer-rankings by attorneys nationwide. He also served as a Trustee of the Village of Munsey Park, Manhasset after being elevated from the Zoning Board of Appeals.

    Mr. Seidner has been published in The Law Practice Magazine of The American Bar Association, The Nassau Lawyer of the Nassau County Bar Association, and been featured on MSN Money. He is a Member of The American Bar Association, The Nassau County Bar Association, The National Academy of Elder Law Attorneys, The Steering Committee for the Nassau County Family Court, and The Part 36 Panel for Article 81 Guardianships. Mr. Seidner serves on the Matrimonial Law Committee, the Elder Law Committee, and the Conciliation Committee of the NCBA.

    Scroll to Top