About James

James Dunphy is a partner at Wagner Sidlofsky LLP, where he practices exclusively in estate litigation and commercial litigation. He holds the Trust and Estate Practitioner designation and previously worked as a criminal defence lawyer, giving him experience with high-conflict, high-stakes disputes. He has appeared as counsel before the Ontario Superior Court of Justice and the Court of Appeal for Ontario. James is originally from Kilkenny, Ireland, and studied at the National University of Ireland, Galway, where he qualified as a solicitor admitted to practice in the Republic of Ireland. He belongs to several professional bodies, including the Ontario Bar Association, the Canadian Bar Association, and the Law Society of Ireland, and served as Member-at-Large of the Advocates' Society's Estates Litigation Practice Group in 2020 and 2021.

Practice areas

Wills, Estates & Trusts Civil Litigation & Dispute Resolution

Education & credentials

Law school
National University of Ireland, Galway

Listing compiled from public sources in September 2026. Confirm James Dunphy’s licence and standing in the Law Society of Ontario directory ↗