About Us
Allison Thornton

Allison has over 12 years of commercial and public law litigation experience, including several appearances before the Ontario Court of Appeal and the Supreme Court of Canada. Allison has represented clients in franchise, partnership, and brokerage disputes, participated in the defence of significant class proceedings and in the design and implementation of a complex class action settlement, and has argued appeals in the courts and before administrative boards. Allison is experienced in obtaining emergency injunctive relief, in employment matters for both employers and employees, in the conduct of private arbitration proceedings and in cross-border litigation issues including letters of request, the enforcement of foreign judgments and arbitral awards and in challenging proceedings brought in Ontario against foreign defendants on jurisdictional grounds.

In addition to a traditional commercial litigation practice, Allison has advocated on behalf of First Nations clients throughout her career for the amelioration of substandard water and wastewater infrastructure in First Nations communities. Allison first appeared as counsel to Ontario First Nations in the Walkerton Inquiry and prepared subsequent submissions for a federal commission empanelled to make recommendations on regulation of drinking water and wastewater. Allison has also spoken on these issues at conferences across Canada and participated as a member of an ad hoc national technical advisory group of First Nation organizations responding to the regulatory changes proposed by Senate Bills S-11 and S-8.

Allison has maintained throughout her practice a professional and academic interest in constitutional law. Her first major journal article, as co-author with Peter W. Hogg, was published while she was a law student at Osgoode Hall Law School. “The Charter Dialogue Between Courts and Legislatures” has been subsequently republished several times and was the subject of a special issue of the Osgoode Hall Law Journal on its tenth anniversary in 2007. Allison has also been privileged to act as counsel for the Canadian Civil Liberties Association in a constitutional challenge to the Ontario Civil Remedies Act (Chatterjee v. Ontario, 2008) and in advocating for the interpretation of the common law in a manner consonant with civil liberties in Hill v. Hamilton Wentworth Police Services Board (2006) and Kvello Estate v. Miazga (2008), and Opitz v. Wrzesnewskyj (2012). Allison also represents the Canadian Civil Liberties Association as a party with standing at the Ashley Smith Inquest.

Allison enjoys teaching and has participated as a guest lecturer in Constitutional Law at Osgoode Hall Law School, as an Alumni Mentor and guest lecturer in the Arts and Science Programme at McMaster University, and in the Osgoode Intensive Trial Advocacy Workshop providing practical litigation training to junior litigation lawyers.

Admitted to the Ontario Bar - 2000
Osgoode Hall Law School, LL. B. (Bronze Medallist) - 1998
McMaster University, B. Arts Sc. - 1995

Reported Decisions

Publications and Presentations

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