McTeer is a lawyer, specializing in health policy. She has also been a professor at various universities. In the
1988 federal election, McTeer ran as a Progressive Conservative candidate in
Carleton—Gloucester, hoping to get elected alongside her husband. Despite the party's re-election victory, McTeer was not elected in her riding, coming second to the Liberal candidate,
Eugène Bellemare. As of 2023, however, she remains the only spouse of a former Canadian Prime Minister to have run for political office herself. McTeer was also a professor and taught at the Universities of Dalhousie, Calgary and British Columbia in Canada, and was a visiting scholar at the University of California at Berkeley. McTeer was also a distinguished scholar in residence at American University in the Government department and lectured at George Mason University. McTeer is also the author of three books,
In my own Name (2011), her autobiography, ''Parliament: Canada's democracy and how it works
(1995), and Residences: Homes of Canada's leaders'' (1982). McTeer also wrote articles for various academic journals, many on the ethics of health, including euthanasia. Maureen McTeer promoted
Frances Itani's novel
Deafening in
Canada Reads 2006. She promoted its French-language translation,
Une coquille de silence, in
Le combat des livres 2006. ==Honours==