Judge wearing a rob with a blue tie

Mediating/Arbitrating Cases In:

  • Personal injury
  • Medical malpractice
  • Labor law
  • Real estate
  • Commercial matters

Hon. William J. Condon (Ret.)

The Hon. William J. Condon is a former Justice of the New York State Supreme Court, having retired from the bench in 2022. Justice Condon presided over both criminal and civil cases during his time on the bench, including, most recently, State of NY v. Michael G. Valva.

In 2013, Justice Condon presided as a trial judge as part of a statewide initiative to address the unprecedented trial backlog in Supreme Court, Bronx County. Justice Condon’s varied experience, both as a jurist and as a practitioner gives him a unique perspective on dispute resolution which he now brings to Mediation Solutions.

Justice Condon served as a Principal Assistant District Attorney in the Suffolk County’s District Attorney’s Office for over seven years before becoming Bureau Chief of the Suffolk County Trial Team for State Farm Insurance Co., where he served for twelve years. He was a partner in his own law firm from 2006 through 2009, where his practice focused on civil litigation, criminal law, estate practice, real estate and commercial litigation. During that time, he also served as Counsel to the New York State Senate under State Sen. Cesar Trunzo.

As a trial attorney, Justice Condon has represented both plaintiffs and defendants in personal injury matters and has taken dozens of verdicts in both civil and criminal cases in virtually every venue and court in the New York City area.

Justice Condon co-authored a chapter in the 2021/2022 New York State Bench Book for Trial Judges. He has lectured on trial jurisprudence for the New York State Bar Association, at the Suffolk County Academy of Law, Touro Law School, St. Joseph’s College and Dowling College, as well as the New York State Academy of Trial Lawyers.

He has presided as a judge in several moot court finals through St. John’s Law School and the Queens County District Attorney’s Office.

Professional Experience

NY State Supreme Court Justice (2009-2023)

Counsel to New York State Senate, Senator Caesar Trunzo (2006-2009)

Partner, Maffei & Condon, LLP (2006-2009)

General Practice with an emphasis on civil litigation; personal injury - plaintiff and defense; criminal law; estate practice; real estate and commercial litigation.

Team Manager / Senior Trial Attorney, Richard T. Lau and Associates (1993-2006)

Supervised staff of nine attorneys and ten support staff; trials to verdict of fire and automobile personal injury suits for State Farm Insurance Co.

Suffolk County, New York District Attorney’s Office (1986-1993)


Hofstra University School of Law, J.D., 1985

State University of New York at Albany, B.A. in English and American History,1981

U.S. Treasury Department’s Bureau of Alcohol, Tobacco and Firearms National Academy


Judge of the Year, Suffolk County Court Officer’s Association (2019)

Judge of the Year, Suffolk County Criminal Bar Association (2016)

Judge of the Year, Suffolk County Brehon Society (2010)

Memberships and Professional Activities

Suffolk County Bar Association Negligence Defense Committee (past Chair)

Suffolk County Bar Association Supreme Court Committee

Suffolk County Bar Association Bench Bar Committee

New York State Supreme Court Justices Association (Past President and Executive Board member)

Co-Editor/ Contributor, New York State Bench Book For Trial Judges, 2020 - 2021 Edition