Career
She was the owner of a computer and accountancy company for over 20 years. She served as a municipal councillor from 1998 to 2002 and as mayor from 2002 to 2005 in Sainte-Marthe-sur-le-Lac. Leblanc was nominated as an ADQ candidate for the 2007 election, after Jean-François Plante"s candidacy was dismissed by his own party.
Plante, a former Vision Montréal Councillor in Montreal, had made a controversial statements about women"s rights and accused openly gay Parti Québécois (Province of Quebec) leader André Boisclair of taking advantage of his sexual orientation.
Province of Quebec candidate Daniel Goyer finished second with 33% of the vote. Leblanc took office on April 12, 2007.
She campaigned on behalf of local Conservative candidate Claude Carignan during the federal election of 2008. Carignan finished a distant second against Bloc Québécois candidate Luc Desnoyers in the district of Rivière-des-Mille-Îles.
She was then the Conservative candidate for the same district in the federal election of 2011.
She finished fourth with 5,057 votes (97 per cent of the votes) against NDP candidate Laurin Liu.