Lex Mentis™Attorney Check

New York attorney · Reg. #2712974

John Joseph O'Brien

Discipline on record (registry: Currently registered)

Current employer

J.j. O'Brien & Associates, P.C. · Philadelphia, PA · since at least September 2026

Admission

Admitted 1995, First Department · NEW YORK UNIVERSITY

Flags

  • Interim suspension — Matter of O'Brien, 2015 NY Slip Op 09646 (December 2015)
  • Suspended — Matter of O'Brien, 2012 NY Slip Op 04950 (June 2012)

Appellate Division decisions

Employment history

Compiled from NYS Office of Court Administration registration records, published NY Appellate Division decisions, and SEC orders against attorneys; current as of October 2026. Not an official record; verify with the NY Courts Attorney Search.