Professional Background

Peter has built his reputation as an industry recognized and trusted advocate over the course of  many trials, applications and appeals involving issues related to shareholder and partnership disputes, securities, directors’ and officers’ liability, professional negligence, construction, employment, estates, environmental law and real estate development, as well as a wide variety of contractual disputes.

Peter is frequently consulted by board members and shareholders in regard to both public and private company disputes. He also regularly represents some of Canada’s largest law firms. He has acted as counsel and 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, and the Discipline Committee of the Institute of Chartered Accountants of Ontario. He regularly appears as a prosecutor before 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.


  • Called to Ontario Bar, 1986
  • LL.B., Queen’s University, 1984
  • B.A. (Honours), Wilfrid Laurier University, 1979

Rankings + Recognitions

  • Peter is described by Chambers Global as an “excellent, skilled advocate with solid judgment”.
  • Ranked in the area of Director and Officer Liability Practice and Securities Law by Best Lawyers® in Canada from 2006 – 2019.
  • Recognized by LEXPERT for in the areas of corporate commercial litigation, professional liability, directors’ and officers’ liability, and securities litigation.
  • Designated by Martindale-Hubbell as “AV® Preeminent™” – its highest peer review rating.
  • Fellow of the International Academy of Trial Lawyers.


Peter is a bencher of the Law Society of Upper Canada, chairs its Professional Development & Competence Committee, and sits on the Litigation, Tribunal and Compensation committees. He is a member of the Law Society Tribunal’s Appeal Panel and has written a large number of discipline decisions.

He is a past director of The Advocates’ Society.

Selected Cases

  • Best v. Canada (Attorney General),  FC 1145 (CanLII)
  • Bombardier Transportation Canada Inc. v. Metrolinx  ONSC 2372 (CanLII)
  • Crombie Property Holdings Limited v. McColl-Frontenac Inc. 406 DLR (4th) 252 (OCA)
  • Amato v Welsh,  ONSC 1575 (CanLII)
  • Prince v. ACE Aviation Holdings, 120 O.R. (3d) 140 (C.A.)
  • Amato v Welsh 362 DLR (4th) 38 (OCA)
  • Peel (Police) v. Ontario (Special Investigations Unit),110 O.R. (3d) 536 (OCA)
  • Berry v. Ontario (Securities Commission), ONSC 3012 (Div. Ct.)
  • Episcopal Corporation of the Diocese of Alexandria-Cornwall v. Cornwall Public Inquiry , 278 D.L.R. (4th) 550 ( OCA)
  • Reynolds v. Kingston (Police Services Board), 84 O.R.(3d) 738 and 86 O.R. (3d) 43 (OCA)
  • Ellins et al. v. Coventree Inc. et al., 28 B.L.R. (4th) 292 (Sup. Ct. Jus.)
  • Windsor (City) v. MFP Financial Services Ltd), 74 O.R. (3d) 58 (OCA)
  • Reach M.D. Inc. v. Pharmaceutical manufacturers Assn. Of Canada 65 O.R. (3d) 30 (OCA)
  • Law Society of Upper Canada v. Canada (Attorney General),  CanLII 7981 (Ont. S.C.)
  • Prete v. Ontario (Attorney-General), 16 O.R. (3d) 161(OCA.)
  • Gemini Group Automated Distribution Systems Inc. v. PWA Corp., CanLII 314 (Ont.C.A.)
  • Chalmers v. Toronto Stock Exchange, 70 O.R. (2d) 532 (C.A.) leave to appeal refused (1990), 37 O.A.C. 399n



Selected List of Directors’ and Officers’ Liability Decisions

  • Ellins v. Coventree, 28 B.L.R. (4th) 292

Peter acted for certain of the directors and shareholders of Coventree’s subsidiary, Nereus, in a dispute over control of the Nereus board of directors.

  • Royal Bank of Canada, et al. v. Melnuk, et al.

Peter acted for the CEO of Brackwell Corporation in an action commenced by a lending consortium alleging that the directors and officers had breached their respective duties to the lenders while Brackwell Corporation was in the zone of insolvency.

  • David Horsley and Sino-Forest Corporation

Peter acted for the Chief Financial Officer of Sino-Forest Corporation, in an Ontario Securities Commission proceeding and in a class action. In July, 2014, Peter negotiated a settlement of both proceedings under which the client agreed to a permanent D&O ban and agreed to make a payment of $5.6 million to the class action Plaintiffs. The settlement was approved in concurrent Ontario Securities Commission and contemporaneous court proceedings in Canada and in the United States.

  • Renegade Capital v. Dominion Citrus Limited,  ONSC 1590 (Ont S.C.)

Peter acted for the trustees of an income trust in litigation over control of the board of directors of Dominion Citrus

  • Continental Currency Exchange Corp. v. Continental Bank of Canada, et al. 

Peter acted for the directors of Continental Bank of Canada and was successful in getting them removed from oppression proceedings at an early stage.


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. Some representative articles include:

  • Playing the Market: Stockbrokers’ Liability for Clients’ Losses, 27 Can. Bus. L.J. 232
  • Post-employment Competition Canaero Revisited, C.B.R. 233
  • Disciplinary Powers of Domestic Tribunals, 6 Admin. L.J. 10
  • Abby and Psychiatric Opinion Evidence, 17 Ott. L. Rev., 116(cited by Justice Sopinka in R. v. Lavallee, 1 SCR 852)


Peter routinely acts as speaker or instructor on advocacy topics at conferences organized by The Advocates’ Society and the Law Society of Ontario. From 2003 to 2015, he co-chaired a biennial Law Society program on Directors’ and Officers’ Liability.