Mr. Breit serves as liaison counsel in New York state consolidated Bextra-Celebrex litigation, and maintains an active mass tort practice that includes Vioxx, Guidant, and Medtronic defibrillator litigation; environmental contamination class action litigation; and consumer class actions involving the banking industry. He was class co-counsel and court-appointed depository custodian in groundwater contamination litigation in the Southern District of New York involving the gasoline additive MTBE. He formerly represented the County of Suffolk, New York and the Suffolk County Water Authority in their claims against the petroleum industry for MTBE contamination. Mr. Breit was also co-counsel in union health and welfare fund tobacco litigation, which included multiple class actions in numerous jurisdictions.

Mr. Breit is a member of the Association of the Bar of the City of New York, where he served on the Art Law Committee, the Committee on State Courts of Superior Jurisdiction, the Committee on Federal Legislation, and currently the Committee on the Judiciary; the Federal Bar Council American Inn of Court; the Association of Trial Lawyers of America; and the New York State Trail Lawyers Association.

Mr. Breit has been a frequent panelist at Mealey's litigation conferences involving toxic and mass torts and groundwater contamination.