Peter Wardle- Partner

Peter Wardle

Called to Ontario Bar, 1986

LL.B., Queen’s University, 1984
B.A. (Honours), Wilfrid Laurier University, 1979

Contact Details:
Telephone: (416) 351-2771

Assistant: Tara Lisowski
Telephone: (416) 351-2792

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Canadian Legal Lexpert Directory



  • Peter is described by Chambers Global as an “excellent, skilled advocate with solid judgment”; he is ranked by Best Lawyers for his work in directors’ and officers’ liability and securities litigation; he is recognized by LEXPERT for his professional liability practice; he is designated by Martindale-Hubbell as “AV® Preeminent™” – its highest peer review rating; and he is a Fellow of the International Academy of Trial Lawyers
  • Peter has built this reputation over the course of many trials, applications and appeals involving shareholder and partnership disputes, securities, director’s and officer’s liability, competition, professional negligence, wrongful dismissal, estates, and real estate development, as well as a wide variety of contractual disputes
  • He has also participated as counsel and as arbitrator in a number of arbitrations involving commercial issues
  • In addition, Peter has appeared before a wide variety of regulatory tribunals, including the Ontario and Nova Scotia Securities Commissions, The Ontario District Council of the Investment Dealers Association of Canada, and the Discipline Committee of the Institute of Chartered Accountants of Ontario
  • Peter has prosecuted discipline cases on behalf of the College of Physicians and Surgeons of Ontario
  • Peter acted as lead counsel for a group of affected families before the Inquiry Into Pediatric Forensic Pathology in Ontario and a citizens group in the Cornwall Public Inquiry

Professional Activities

  • Peter is a bencher of the Law Society of Upper Canada, co-chairs its Audit & Finance Committee, co-chairs the Mentoring Task Force, and sits on its Priority Planning, Professional Development, Litigation and Compensation committees
  • He is a past director of The Advocates’ Society

Selected Cases

Selected Publications & Presentations

  • Peter Co-Chairs the Law Society of Upper Canada’s Emerging Issues in Directors’ and Officers’ Liability conference
  • He is also a regular guest instructor at the Intensive Trial Advocacy Workshop conducted by Osgoode Hall Law School
  • Peter’s articles have been cited by the Supreme Court of Canada, the Ontario, British Columbia and New Brunswick Courts of Appeal, the Alberta, Manitoba and Saskatchewan Courts of Queen’s Bench, the Supreme Court of Nova Scotia and the Superior Court of Quebec
  • Playing the Market: Stockbrokers’ Liability for Clients’ Losses, 27 Can. Bus. L.J. 232, 1997
  • Post-employment Competition ­ Canaero Revisited, C.B.R. 233, 1990.
  • Disciplinary Powers of Domestic Tribunals, 6 Admin. L.J. 10, 1990.
  • Abby and Psychiatric Opinion Evidence, 17 Ott. L. Rev., 116, 1985 (cited by Justice Sopinka in R. v. Lavallee, [1990] 1 S.C.R. 852)