About Andrea

Andrea M. Mannell joined Sullivan Mahoney LLP in 2018 following her articles with the firm and now works within its Administrative Law and Litigation groups. Her practice centers on general civil litigation along with municipal law and land use planning matters, and she represents clients both in court and before administrative tribunals. She has argued cases at every level of the Ontario court system, from the Ontario Court of Justice through the Court of Appeal for Ontario. Andrea grew up in the Niagara Region and was admitted to the Law Society of Ontario in 2018 after earning her J.D. from the University of Calgary in 2017 and a B.A. with honours from the University of Guelph in 2013. She belongs to the Law Society of Ontario, the Canadian Bar Association, the Ontario Bar Association, and the Lincoln County Law Association.

Practice areas

Administrative & Regulatory Law Civil Litigation & Dispute Resolution

Education & credentials

Law school
University of Calgary
Undergraduate
B.A. (Honours), University of Guelph

Listing compiled from public sources in July 2026. Confirm Andrea M. Mannell’s licence and standing in the Law Society of Ontario directory ↗