James W E Doris

Prior to founding Tyr LLP in June 2019, Jim was a senior partner at Davies Ward Phillips & Vineberg LLP in the Litigation Group, where he practiced for over twenty-five years.

Jim is an experienced litigator handling complex commercial disputes. He excels at identifying critical business issues and litigating complex cases in a practical way to achieve his clients' business objectives. His areas of expertise include shareholder and oppression remedy actions, class actions, securities disputes, insolvency, gaming and competition matters. He has appeared as counsel before all levels of court in Ontario, the Supreme Court of Canada and a variety of other courts and administrative tribunals across the country.

Jim has received numerous recognitions, including Chambers Canada: Canada's Leading Lawyers for Business—Litigation, General Commercial: Ontario: The Best Lawyers in Canada "Lawyer of the Year" in the area of Director and Officer Liability Practice (2025, Toronto) and “Lawyer of the Year” in Gaming Law (2018, Toronto);  Benchmark Canada—Competition (Litigation Star); General Commercial (Litigation Star); The Canadian Legal Lexpert Directory—Litigation: Corporate Commercial; Litigation: Directors & Officers Liability; Litigation: Securities; and The Best Lawyers in Canada—Class Action Litigation; Corporate and Commercial Litigation; Appellate Practice, Securities Law, Director and Officer Liability Practice, Gaming Law and Insolvency and Financial Restructuring Law. He is a former member of the Board of Directors of The Advocates' Society.