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Deborah is a commercial litigator practising at Thornton Grout Finnigan LLP. She acts for individuals, corporations and financial institutions providing creative advice and strategies for resolving complicated business disputes. Deborah routinely advises and represents clients on cases involving complex commercial agreements, director and officer liability, banking litigation, commercial real estate disputes, fraud claims, shareholder and partnership disputes and securities-related issues. She appears as counsel in the Ontario Superior Court of Justice (Commercial List) and in the negotiation, mediation and private arbitration of commercial disputes. Deborah is recognized as a leading lawyer in several publications. She is past President of The Advocates’ Society. Deborah is a frequent speaker and moderator at Continuing Professional Development (CPD) programs. She was called to the Bar of Ontario in 1996 and the Bar of New York in 1997.


  • 100 Wellington Street West. Suite 3200
    Toronto-Dominion Centre
    P.O. Box 329
    Toronto, ON M5K 1K7

Bar Admissions

  • New York, 1997
  • Ontario, 1996


  • The Advocates' Society - President

Recognized in The Best Lawyers in Canada 2022 for work in:

  • Corporate and Commercial Litigation

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