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Our Address

100 Quentin Roosevelt Blvd, Garden City, NY 11530

Mr. LaMagna’s career specializing in criminal law began in 1987 as a Prosecutor with the Nassau County District Attorney’s Office. As a Prosecutor, Mr. LaMagna gained the reputation for being an aggressive, thorough, and skillful trial attorney. Mr. LaMagna quickly became one of the District Attorneys’ Senior Trial Attorneys and was selected to prosecute some of the office’s most sensitive cases.
In 1992, Mr. LaMagna left the District Attorney’s Office and became a founding partner in Martello & LaMagna P.C. Mr. LaMagna took with him all the skills and experience he learned as a Prosecutor and put them to use defending the rights of his clients. For almost three decades Mr. LaMagna has earned the respect and reputation for being a zealous defender of his client’s rights. Utilizing his extensive experience and trial skills, Mr. LaMagna has successfully defended individuals as well as business entities charged with criminal behavior or under investigation for criminal activity.
Mr. LaMagna has successfully defended his clients in a wide variety of criminal matters both in the State Court as well as in Federal Court. Throughout his career, Mr. LaMagna has been involved in numerous high-profile criminal cases. As a result, he has been a guest lecturer for the Nassau County Bar Association and the National Institute for Trial Advocacy as well as a guest commentator and expert for various news outlets including News 12, Newsday, and the Associated Press. He has been featured in the New York Times and has appeared on 6o Minutes and Prime Time.
Defending the criminally accused is a success-oriented practice since an accused’s freedom, liberty, reputation, and livelihood is often at stake. Mr. LaMagna’s philosophy has always been that you can never successfully negotiate from a position of weakness but rather can only successfully negotiate from a position of strength.
Throughout his career, Mr. LaMagna has utilized this philosophy to obtain successful outcomes for his clients.
As a former Prosecutor, he was trained by the very same government that he defends his clients against. He knows how a prosecutor thinks and how a prosecutor approaches a case and how a prosecutor makes its case.
Mr. LaMagna graduated from Touro College Jacob D. Fuchsberg Law Center and obtained his Juris Doctorate Degree in 1987. He is admitted to the New York State Bar, the United States District Court for the Eastern District of New York as well as the United States District Court for the Southern District of New York. He is a member of the Criminal Courts Bar Association, the Nassau County Bar Association, the American Bar Association, and the National Association of Criminal Defense Lawyers.


Past Positions

  • Nassau County District Attorney’s Office, Prosecutor
  • District Attorneys Senior Trial Attorney

Professional Associations

  • Criminal Courts Bar Association, Member
  • Nassau County Bar Association, Member
  • American Bar Association, Member
  • National Association of Criminal Defense Lawyers, Member

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Defending clients in Nassau and Suffolk Counties