Mtre Eloïse Pion joined Prévost Fortin D'Aoust in May 2009 as a paralegal and worked as a law student while she completed her degree. She graduated from Université de Montréal in 2013 and made the dean's honour roll in recognition of her excellent academic results.
She then attended Québec Bar School and articled at PFD. In 2014, she began her practice at the firm, focusing her career on family and succession law.
Mtre Pion is a member of the Association des avocats et avocates en droit familial du Québec and is president of the board of directors of the Grands Frères et Grandes Soeurs de la Porte du Nord.