Jeff G. Cowan

Jeff G. Cowan

Toronto, ON recognized lawyers icon Recognized in Best Lawyers since 2006
WeirFoulds LLP

48 Best Lawyers awards

WeirFoulds LLP logo

Awarded Practice Areas

Administrative and Public Law Alternative Dispute Resolution Real Estate Law

Biography

Jeff Cowan is recognized as one of Canada's leading public law litigators.

He acts as counsel before administrative tribunals and the trial and appellate courts in many aspects of public law, including professional self-regulation and discipline, judicial review of government decision-making, freedom of information and privacy matters, municipal and provincial planning and environmental approvals, municipal assessment and taxation, health, education, alcohol and gaming, legislative drafting and government relations, and the Canadian Charter of Rights and Freedoms. In addition, Jeff regularly litigates in matters relating to real property, including purchase and sale disputes, lease and contract interpretation, expropriation, valuation, taxation, boundary and ownership issues, Aboriginal land claims, and arbitration proceedings, including acting as an arbitrator.

Jeff has argued many of the leading cases – including in the Supreme Court of Canada – in the areas of tribunal jurisdiction and independence, Ministerial discretion, standard of judicial review, equality rights, constitutionality and interpretation of taxation and valuation legislation and remedies, freedom of information, aboriginal land claims and remedies, ownership of waterfront property, and the interpretation of commercial leases.

WeirFoulds LLP

48 Best Lawyers awards

WeirFoulds LLP logo

Overview

  • Ontario, 1978

  • ADR Institute of Ontario, Inc. - Member
  • Lambda Alpha International (Honorary Land Economics Society) - Member
  • Ontario Bar Association - Executive member and past Chair of Administrative Law section and past Council member
  • The Advocates' Society - (past Director)
  • Ontario, 1978
  • ADR Institute of Ontario, Inc. - Member
  • Lambda Alpha International (Honorary Land Economics Society) - Member
  • Ontario Bar Association - Executive member and past Chair of Administrative Law section and past Council member
  • The Advocates' Society - (past Director)

Client Testimonials

Awards & Focus

Recognized in The Best Lawyers in Canada 2026 for work in:
  • Administrative and Public Law
  • Alternative Dispute Resolution
  • Real Estate Law
Awards:
  • Managing Partner of WeirFoulds from 1999-2003
  • Rated by Martindale Hubbell Ratings as "pre-eminent" (AV)
  • Jeff is recognized as a leading practitioner in his areas of expertise in the Canadian Legal Lexpert Directory
  • Dedicated Service Award, Canadian Bar Association – Ontario
  • Recipient of Society of Ontario Adjudicators and Regulators Medal for outstanding service to the administrative justice system of Ontario

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