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Harrison Pensa LLP
A headshot of David Williams.

David Williams

Counsel

A headshot of David Williams.

Practice areas:

  • Commercial Litigation,
  • Complex Commercial Litigation,
  • Education Law,
  • Insurance Defence,
  • Medical Malpractice,
  • Personal Injury

Meet David


David Williams is considered one of Ontario's most respected civil litigators, specializing in class action litigation, complex commercial litigation and personal injury at Harrison Pensa. Notably, Dave also has a special record of achievement in medical malpractice cases where he has successfully represented plaintiffs. He has also been active in representing Ontario lawyers in litigation supported by LawPro, the Ontario lawyer’s professional liability insurance plan.

As a veteran litigator, Dave’s 40-year legal career has brought him before the Trial Division, the Court of Appeal and the Supreme Court of Canada. He was also the Managing Partner at Harrison Pensa from 1999 until he stepped down in 2014.

Notable Litigations

Involved in high-profile cases including being a member of the plaintiffs’ class action group for the Walkerton contaminated water claim as well as a landmark aboriginal rights dispute. Dave was co-counsel in a number of significant class action matters which proceeded through lengthy common issue trials and onto appeal.

Passion for Law

Dave served for 10 years on the Law Society of Upper Canada’s Civil Litigation Specialty Committee which evaluates applications for specialist certification in civil litigation. He has taught courses on civil litigation, advocacy and practice for the Bar Admission Course and has also published numerous conference papers in his areas of practice.

Credentials & experience

Awards and Recognitions

  • Recognized by The Best Lawyers in Canada™ for Personal Injury Litigation (since 2006), Medical Negligence (since 2018), Bet-the-Company Litigation (since 2016), Insurance Law (since 2006) Corporate & Commercial Litigation (since 2006), and Professional Malpractice Law (since 2017)
  • Called To The Bar

    • 1981

  • Education

    • Western University

      Bachelor of Laws

  • Memberships

    • Middlesex Law Association

    • The Advocates' Society

    • American Association for Justice

Send David a message

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