Leo G. Callaghan, ESQ.

Attorney - Partner

Mr. Callaghan is a founding partner of Callaghan Parente LLP.  His main practice areas are Elder Law, Estate Planning, Estate Probate and Administration, Special Needs Planning, and Business Formation & Continuity Planning.

Prior to founding Callaghan Parente LLP with Mr. Parente, Mr. Callaghan served in several key legal roles with the New York Police Department.

As Special Counsel to the Department’s Deputy Commissioner of Intelligence, Mr. Callaghan was the primary legal advisor concerning the NYPD’s intelligence and counter terrorism operations following the 9-11 attack, and the Department’s lead attorney responsible for the landmark modification of the Handschu federal consent decree.

As Deputy Managing Attorney in the Department’s Legal Bureau, Mr. Callaghan managed the agency’s civil litigation, was the Department’s FOIL Appeals Officer, and provided counsel and training to the Department and its personnel on matters including employment, discipline, labor policy, drug testing, discrimination, contracts, administration, legislation, and internal and public policy.

As Special Counsel to the Chief of Personnel, he provided legal and policy advice and managed litigation and special projects concerning human resources functions in the nation’s largest municipal police agency.

Mr. Callaghan serves pro bono as Legal Advisor to several active and retired law enforcement officer organizations, including the Committee of Police Societies, Inc. and the Retired Police Association of the State of New York, Inc.

Mr. Callaghan also serves pro bono as the General Counsel and Executive Director of Suffolk County CrimeStoppers, Inc.


  • New York State
  • United States Supreme Court
  • United States District Courts – Eastern and Southern Districts of New York


  • New York State Bar Association
    • Trusts & Estates Law Section Member
    • Elder Law Section Member
    • Family Law Section Member
  • Law Enforcement Attorneys Network – President and Founding Member
  • Sage Global Solutions Ltd. – President
  • Sage Quality Review, Inc. – President
  • American Society for Industrial Security International
  • American Academy for Professional Law Enforcement


New York Law School, Juris Doctor – President & Founder, Law Enforcement Law Students Association

St. John’s University, Bachelor of Science Management