Marion is an energetic advocate and advisor.

Marion provides excellent client service through timely, thoughtful and on-point advice. She is skilled at legal research and analysis. She is interested in all areas of law, and particularly passionate about constitutional and administrative law. She practices in English and French.
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Marion joined Conway Litigation in 2019, after serving as Counsel to the Chief Justice of the Federal Court. After her call to the bar, she served as a law clerk to the Honourable Andromache Karakatsanis at the Supreme Court of Canada. She has also clerked for Justice de Montigny and Justice Bédard at the Federal Court, and practiced at a litigation boutique in Ottawa.

Marion has acted for civil society organizations, school boards, parliamentarians and Indigenous clients. She provides litigation services and advises clients on legal developments that affect their interests. Marion has worked on judicial reviews, appeals, and interventions at all levels of courts. She has appeared before the Supreme Court of Canada. She is counsel to the Independent Assessor (Hon. Michel Bastarache) under the Merlo Davidson class action settlement, where she assists in assessing claims related to gender-based discrimination in the RCMP.

Prior to her career in law, Marion worked in the field of international development. She helped manage overseas projects in areas ranging from rural livelihoods to economic research. This work took her to Kenya, Vietnam, Senegal and Mexico.

Marion is also passionate about teaching and mentoring. She has served as a Maître de stage at the French-language Law Practice Program and she teaches Canadian Federalism Law at the University of Ottawa.

Marion sits on the Board of Directors of the Bytown Museum and the Ottawa Independent Living Resource Centre. She also makes time for singing, curling and enabling her husband and toddler’s train obsession.


B.C.L. / LL.B. (McGill University – 2014)
M.A. International Affairs (Carleton University – 2008)
B.A. (Hons) International Development Studies (McGill University – 2006)

Bar Admission

2015 – Ontario


Canadian Bar Association
County of Carleton Law Association
Law Society of Ontario
Ontario Bar Association

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