Our People

Marc D. Whiteley



B.Comm. (Hons.) McMaster University (2004), Summa Cum Laude
LL.B. University of Ottawa (2007)

Called to the Ontario Bar, 2008


Marc D. Whiteley is a Member of the Commercial Litigation and Estate Litigation Groups.

He has a broad complex commercial and estate litigation practice, representing individuals, and corporations of all sizes.

Marc has appeared at all levels of court in Ontario, including the Superior Court of Justice, Divisional Court, the Court of Appeal and has made written submissions to the Supreme Court of Canada.

He handles a wide range of complex litigation matters including administrative law, real estate/property and contract disputes, estate litigation, construction litigation, injunctions, fraud, debt recovery and appeals.

Marc also has experience in health litigation, ranging from professional regulation and disciplinary hearings, to the regulation of independent health facilities.

Special Designations and Awards

  • Recognized as a Lawyer to Watch in the area of Litigation – Corporate Commercial by the 2018 Canadian Legal LEXPERT Directory
  • Former Law Clerk for the Office of the Chief Justice, Ontario Superior Court


  • Member, Peel Law Association
  • Past President and Board Chair, Mississauga’s Heart House Hospice


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Haig DeRusha, DeRusha Law Firm