Guillaume Lemieux began his university career at Laval University as a student in the Certificate on Outstanding Works of Western Culture.

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He subsequently obtained his Law degree, during which he spent a session abroad at the Université Catholique de Louvain, in Belgium, where he studied international and Belgian law.

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During his bachelor's degree, he was involved as Vice President of Finance for the faculty's theatre company.

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Having passed his Quebec Bar exam in 2019, Guillaume joined Gravel Bernier Vaillancourt as an articling student the same year.

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