At Lenczner Slaght, Mari Galloway operates as an associate, delivering legal expertise across various domains, including commercial, construction, estates, insurance, and public law disputes. She has established a significant presence in the Ontario courts, engaging at every level, and frequently handles cases before administrative tribunals.

During her tenure as the 2020-2021 Harold G. Fox Scholar, Mari immersed herself in the legal landscape of London, England, collaborating with premier Barristers at Middle Temple on a range of legal matters that span international, private, and public law.

Her academic journey culminated magna cum laude at the University of Ottawa, where she also contributed as a research assistant across several initiatives, including the Centre for Law, Technology and Society, the Refugee Hub, and the Environmental Justice project. Mari's active participation in moot court competitions further exemplified her commitment to legal advocacy, competing in both the Nelligan O'Brien Payne First Year Moot Court Competition and the Harold G. Fox Intellectual Property Moot.

Mari's pre-law school accomplishments include achieving a joint master's degree in Environmental Policy and Planning from the Technische Universität and Freie Universität in Berlin, and a bachelor's degree in Political Science from McGill University, laying a solid foundation for her legal career.

Her practice areas are extensive, covering Appeals, Arbitration, Class Actions, Commercial Litigation, Construction and Infrastructure, Insurance, Professional Liability and Regulation, Public Law, and Trusts and Estates Litigation, with her admission to the Ontario Bar in 2020 marking a significant milestone in her burgeoning legal career.