About John
John Brennan practises commercial litigation, providing a range of legal services and assisting clients with business, contractual, and property disputes. Brennan represents clients at all levels of court throughout Ontario, as well as before the Human Rights Tribunal, the License Appeal Tribunal, and other administrative adjudicative bodies. Brennan is a member of the Middlesex, Elgin, Ontario, and Canadian Bar Associations, as well as the Osgoode Society for Legal History and the Advocates Society.
Practice areas
Listing compiled from public sources in July 2026. Confirm John Brennan’s licence and standing in the Law Society of Ontario directory ↗