James Renihan

T 416 644 5344 F 416 598 3730
E jrenihan@lolg.ca

Ren is a highly effective, creative, and skilled commercial litigator with significant courtroom experience. Clients have confidence in Ren’s pragmatic judgment and actionable legal advice.

Ren’s practice encompasses a broad range of commercial and civil litigation matters. He has significant experience representing corporate and individual clients in disputes involving matters including contracts, director and officer liability, fraud, shareholder rights, commercial real estate and franchise relationships, as well as employment-related litigation for both employers and employees. He also handles professional negligence matters for both plaintiffs and defendants. Equally adept at matters involving abstract legal principles and those which are factually rich, his practice has involved trials, appeals, arbitrations and urgent motions for relief from all levels of court in Ontario, as well as appearances in the Federal Courts and the British Columbia Supreme Court. Prior to joining Lax O’Sullivan, Ren worked at a large international law firm in New York and clerked for the judges of the Court of Appeal for Ontario.


  • Called to the Ontario Bar, 2009
  • Admitted to the New York Bar, 2008
  • Clerkship: Chief Justice Winkler and Justices Weiler, Sharpe and Watt of the Court of Appeal for Ontario
  • J.D., University of Toronto Faculty of Law, 2007
  • B.A. in Philosophy, McGill University, 2004
  • Canadian Lexpert® Directory, 2021: Litigation - Corporate Commercial
  • Lexpert Rising Star, 2020: Leading Lawyers Under 40 Award
  • The Best Lawyers™ in Canada, 2021: Franchise Law
  • Norman Levy Prize in Jurisprudence and the MacDonald Prize in International Law, University of Toronto Faculty of Law
  • Canadian National Champion Jessup International Law Moot team member, 2006
  • North American Debating Champion, 2004