Mary positions her clients to achieve positive settlements or succeed at trial. Although based in Ontario, with many appearances before the Ontario Superior Court, including the Commercial List, she has also conducted trials in the Tax Court of Canada, the Federal Court of Canada, the Alberta Court of Queen’s Bench, the British Columbia Supreme Court, and the Supreme Court of Newfoundland and Labrador. She has appeared on motions in the Manitoba Court of Queen’s Bench.
Mary has also appeared on appeals in the Supreme Court of Canada, the Ontario Court of Appeal, the Ontario Divisional Court, the Alberta Court of Appeal, the Quebec Court of Appeal, and the British Columbia Court of Appeal.
Her areas of specialty include tax litigation, insolvency work (receiverships, bankruptcies and proceedings pursuant to the Companies’ Creditors Arrangement Act) and contract disputes and other general commercial litigation.
Mary has been recognized by multiple organizations, including in the 2022 edition of Best Lawyers Canada, as a 2019 Lexpert Rising Star, the 2021 and 2020 Benchmark Litigation 40 & Under Hot List, and as an Acritas 2018 Star Lawyer. She was also recognized by Osler associates in 2019 as an Osler Star Advisor for her work mentoring associates.
Mary is a member of the Board of Directors for Pro Bono Ontario. Throughout her career she worked to establish several pro bono programs within the firm and has appeared in the Court of Appeal on a pro bono basis numerous times. She won a 2011 Lexpert Zenith Award for her work assisting a UN employee obtain a widower’s benefit after his same-sex partner died while working for the UN.
Before joining Osler, Mary clerked at the Court of Appeal for Ontario.