She practiced civil litigation before joining the Crown Attorney's office in 1980.
She then became a law professor at the University of Ottawa.
She was appointed to the District Court of Ontario in 1988 and to the Court of Appeal for Ontario in 1995.
Though she was eligible to sit on the bench until 2026, her retirement was announced in May 2011, and became effective August 30, 2011.
She was appointed a Companion of the Order of Canada on December 30, 2012.