Patrick C. O'Reilly focuses his practice on matrimonial litigation, handling all aspects of divorce and separation and representing clients in matters related to the modification or enforcement of existing matrimonial judgments and orders. He is a member of the firm's Management Committee and is chair of the Matrimonial and Family Law Practice Area.

For more than 25 years, Mr. O'Reilly has served as a panelist and speaker on matrimonial and family law topic for numerous seminars, workshops, and symposiums sponsored by the American Academy of Matrimonial Lawyers, New York State Office of Court Administration, New York State Bar Association Family Law Section, Bar Association of Erie County, Peoples Law School, and Psychological Association of Western New York.

Bar & Court Admissions

  • New York, 1981


  • State University of New York at Buffalo, J.D.,1980
  • State University of New York at Buffalo, B.A., 1977
The Best Lawyers

The Best Lawyers in America
Named to Best Lawyers in America since 1993 for Family Law

AV Rated by Martindale-Hubell
AV Peer Review Rating, signifying the highest recognition in legal ability and professional ethics

Super Lawyers
Named to Upstate New York Super Lawyers since 2007 for Family Law

Best Lawyers "Lawyer of the Year"
Named "Lawyer of the Year" in Buffalo for Family Law by Best Lawyers in America

Who's who

Who's Who in Law
Named to Business First/Buffalo Law Journal's final 2012 issue of "Who's Who in Law" for Matrimonial and Family Law


  • Past president of the New York Chapter of the American Academy of Matrimonial- Lawyers and member of the National AAML board of governors
  • Chairman of the Executive Committee of the Family Law Section of the New York State Bar Association
  • Member of the New York State Office of Court Administration Committee on Matrimonial Practice, chaired by Hon. Jacquelyn Silbermann, J.S.C., Chief Administrative Judge for Matrimonial Matters in the State of New York
  • Member of the Matrimonial Commission (Miller Commission), established by the New York State Office of Court Administration, and member of the original Committee to Examine Lawyer Conduct in Matrimonial Actions (Milonas Commission)
  • Past chairman of the Bar Association of Erie County Matrimonial and Family Law Committee
  • Adjunct professor of law, SUNY Buffalo Law School, teaching divorce practice from 1999 to 2002 and from 2004 to present
  • Association of Family and Conciliation Courts board of directors
  • Member of the PEACE Program Advisory Board for the Eighth Judicial District
  • Past president of the Univeristy at Buffalo Law Alumni Association