Saint-Amand was vice-president and president for the Club culturel et humanitaire Châtelaine de Jonquière and was founding president of the Fondation Châtelaine at Jonquière.She was elected to the Quebec assembly in a by-election held in 1983 but was defeated when she ran for reelection in 1985 and 1989.
She worked as an advisor in the offices of various Quebec cabinet ministers from 1986 to 1992.
In 2003, she became a member of the board of directors for the Orchestre Symphonique du Saguenay-Lac-Saint-Jean, becoming assistant chair in 2004.She married Ghislain Saint-Amand; he died in 2005.