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Meet William E. Pepall

Plaintiff Class Actions Lawyer

"Class actions often create new law so success hinges on not just the experience and expertise you bring to the table, but creativity and inspired thinking as well. The law is constantly evolving so no two cases are the same. Striking the right balance is critical."

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Professional Highlights

  • Practice Group Leader, Commercial Litigation Group (2010 to present)
  • Partner, Lerners LLP (2009)
  • Partner, Heenan Blaikie LLP (2000-2009)
  • Founder and Partner, Genest Murray (1987-2000)
  • Partner, Cassels, Brock (1981-1987)

  • Nelbar, acted for investors defrauded in Ponzi investment scheme
  • Laidlaw, acted for auditors in cross-border securities litigation
  • Crocus, acted for auditors in Manitoba securities action
  • Aspen, act for lawyers in securities action
  • Advisor to auditors in CP Ships, Sun Opta and Imax securities actions
  • Advisor to accounting firms in overtime class actions - Acted for car manufacturer in competition law class action

  • Certified as a Specialist in Civil Litigation by the Law Society of Ontario
  • Benchmark Canada, Litigation Star (2017-2020) - Recognized in the following areas: Appellate, Class Actions and Commercial (2017-2020); Dispute Resolution (2020)
  • Recognized as a leading litigator in the Lexpert Special Edition - Canada’s Leading Litigation Lawyers (2018-2019)
  • Recognized and recommended by Lexpert as a leading lawyer in the area of professional liability, corporate commercial litigation, director & officer liability and securities litigation (2011-2018); corporate commercial litigation and professional liability (2019-2021)
  • Recognized and recommended by Lexpert as a leading cross-border lawyer in the area of corporate commercial litigation, Lexpert Guide to the Leading US/Canada Cross-Border Litigation Lawyers in Canada (2016, 2014)
  • Recognized as one of Canada’s leading lawyers in the area of director and officer liability practice, corporate and commercial litigation, legal malpractice law, class action litigation, and professional malpractice law in Best Lawyers in Canada (Woodward/White)
  • Designated as Preferred Counsel by Lawyers’ Professional Indemnity Company

  • “Case shows institutional investors may want more than passive role in class actions”,, April, 2013 (read online)
  • Delivered numerous papers and lectures to, inter alia, Queen's University Law School, The Advocates' Society, The Ontario Bar Admission Course, the 12 Minute Securities Lawyer, and Osgoode Hall Continuing Education

  • Member, The Advocates' Society
  • Member, Canadian Bar Association
  • Member, Lawyers' Club
  • Member, The Law Society of Ontario
  • Member, Toronto Lawyers Association

  • Master of Laws, Securities Law, Osgoode Hall Law School (2003)
  • Bachelor of Laws, Queen's University (1974)
  • Bachelor of Arts, University of Toronto (1971)