Elizabeth Marshall was appointed to the Senate of Canada in January of 2010 having previously spent 30 years with the Newfoundland and Labrador Public Service, the Government of Newfoundland and Labrador, and the Newfoundland and Labrador House of Assembly. Since 1979, she occupied a number of positions in the provincial public service, including Deputy Minister of Transportation and Works, and Deputy Minister of Social Services, as well as several senior positions in the Department of Finance.

She was appointed Auditor General of Newfoundland and Labrador in 1992 and served in that position for 10 years. In 2003, she was elected as the Member of the Newfoundland and Labrador House of Assembly for the District of Topsail and was re-elected in 2007. She served as Minister of Health and Community Services from 2003-2004.

In 2011, Senator Marshall was appointed as the Government Whip in the Senate, a position she held until November 2015. She is currently a member of the Standing Senate Committee on National Finance, and the Standing Senate Committee on Banking, Commerce and the Economy.

She holds a Bachelor of Science (Math) degree from Memorial University of Newfoundland and Labrador, and is a member of the Chartered Professional Accountants of Newfoundland and Labrador. She received her FCPA designation in 2011.

Senator Marshall resides in Paradise, Newfoundland and Labrador, with her husband.