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John M. Guerriero

Associate | New York, NY
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t. 212.651.7500
f. 212.651.7499

Attorney John Guerriero concentrates his practice on the defense of environmental, toxic tort and product liability matters. He represents product manufacturers and contractors. Mr. Guerriero handles all aspects of litigation, including depositions, motion practice, settlement negotiations and trial preparation. He has obtained dismissals for numerous equipment manufacturers and contractors in toxic tort actions during his career.

Prior to joining Segal McCambridge, Mr. Guerriero gained extensive litigation experience representing clients in toxic tort, product liability and personal injury matters. He also served as national discovery counsel for a major friction products company. In addition, Mr. Guerriero investigated and brought claims involving fraudulent medical practices.

Mr. Guerriero began his legal career as an Assistant District Attorney in Brooklyn, New York, where he prosecuted cases involving domestic violence and crimes against children. He also visited New York City elementary schools and taught basic aspects of criminal law to children.

Outside his legal career, Mr. Guerriero performs stand-up comedy at various venues throughout Long Island and New York City as well as at charity events and rehabilitation centers.

Professional & Civic Involvement

  • New York State Bar Association
  • Vice President, Nassau Shores Civic Association
  • President, Board of Managers of a Long Island condominium community


St. John's University School of Law, J.D. (1999)

Syracuse University, B.A., Political Science, B.S., Television, Radio & Film, dean's list (1996)


  • New Jersey, 2003
  • New York, 2000