Antoine is currently completing his Juris Doctor (J.D.) at Osgoode Hall Law School in Toronto. He previously studied at Université de Montréal's Faculty of Law, where he was named to the Dean's Honour List for his exceptional academic records. During his studies at Université de Montréal, Antoine participated in the Laskin National Moot Court Competition in constitutional and administrative law. He was among the top 5 pleaders in the 2023 edition of this bilingual competition, at the end of which his team placed third.
During his first two years of law school, Antoine was involved with the Université de Montréal's Lawyers Without Borders committee, first as first-year vice-president, then as president of the university group. During his last year at Université de Montréal, after being elected by his peers, he sat on the board of directors of his student association as Vice-President of Internal Affairs. At the end of his mandate, he was awarded the Bourse pour l'engagement envers la collectivité, in recognition of a student who has distinguished himself through his involvement and the positive impact of his actions on his community. This year, Antoine is involved with the Osgoode Hall Law School legal clinic.