About John

Campbell is a litigation lawyer handling commercial disputes, employment matters, professional negligence claims, insurance coverage issues, and shareholder and partnership disputes. He practised at WeirFoulds LLP from 1980 to 2011 before joining Cass and Campbell.

Practice areas

Civil Litigation & Dispute Resolution Employment & Labour Law Insurance Law

Education & credentials

Law school
University of Western Ontario

Listing compiled from public sources in August 2026. Confirm John D. Campbell’s licence and standing in the Law Society of Ontario directory ↗