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. She was also a member of the elected regional council of the Laurentians as well as the region police and the businesswomen network of the Laurentians.
Leblanc won a narrow victory to represent the district of Deux-Montagnes with 36% of the vote. PQ candidate Daniel Goyer finished second with 33% of the vote. Leblanc took office on April 12, 2007.
The Gardner-area high school girls basketball season has come to an end this season ...Sisters Amaiya and Jada LeBlanc added 8.5 and 8.1 points per game, respectively. Another sister duo of Molly and Lucie Horgan are other top players for Oakmont.