She is the daughter of Louis Papineau Montreuil and Lina Chicoine and she is the grand daughter of Yves Montreuil, public notary in Quebec city and of Leonie Papineau, on father's side, and of Georges Alfred Chicoine and Mary Lapointe, on mother's side.

On September 13, 2003, she married the lawyer and author Michèle Morgan at the Quebec City Palais des arts.

In 2006–2007, she worked as a lawyer at the Conseil de la justice administrative du Québec.

Since 2007, she is back as a lawyer in private practise and teacher of ethics, law and management at the UQAR, the Université du Québec à Rimouski.

Following a Court of Appeals ruling, her request was finally accepted in 2002, but only for the name Micheline.