About Slattery & Slattery

Slattery & Slattery is a small Toronto firm that focuses entirely on Aboriginal law. It represents Indigenous clients and Band Councils and collaborates with outside legal counsel on files rather than trying to be a general practice. The firm's core work is legal and historical research into Aboriginal and Treaty rights in Canada, along with genealogical research into family history, work it describes as tying the past to the present.

The firm is built around its two named partners. Brian Slattery, the firm's research director, holds a doctorate in law from Oxford, a law degree from McGill, and a bachelor's degree in English from Loyola College of Montreal. A Professor Emeritus at Osgoode Hall Law School, Brian Slattery spent an academic career studying Aboriginal rights and constitutional law and no longer practices law day to day, focusing instead on research and writing. Michael Slattery, the firm's legal counsel, holds a law degree from Western, a master's in Environmental Studies from York, and a bachelor's degree in English from McGill. Michael provides governance advice to First Nations, handles dispute resolution, and has land claims litigation experience involving Treaty rights, traditional territory, Aboriginal rights, and Aboriginal title.

Practice areas

Milestones & recognition

  • Brian Slattery joined Osgoode Hall Law School in 1981 and later became Professor Emeritus there, after earlier academic posts at McGill University, the University of Dar es Salaam in Tanzania, and the University of Saskatchewan, serving as Research Director of the Native Law Centre there.
  • Brian Slattery served as Senior Advisor to the Royal Commission on Aboriginal Peoples and was elected to the Royal Society of Canada in 1995 for work on advancing Aboriginal rights.
  • York University inducted Brian Slattery as a distinguished research professor in 2009.
  • The Supreme Court of Canada has cited Brian Slattery's scholarship in more than a dozen decisions, including most of the important cases on Aboriginal rights.

Good to know

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This firm’s lawyers at a glance

Law schools
McGill University, Western University 2 of 2 lawyers

The neighbourhood

The firm's office sits on Bathurst Street at the corner where Kensington Market meets the Harbord Village neighbourhood, since Bathurst Street forms the shared western boundary of both. Kensington Market grew up as a reception area for successive waves of immigrants, and Harbord Village has a similar history of taking in Eastern European, Portuguese, and other newcomer communities from the late nineteenth century onward. It's a fitting corner of the city for a firm whose work centres on tracing family and community history, even if that history is different from the neighbourhood's own.

Frequently asked questions

What areas of law does Slattery & Slattery practice?
The firm practices Aboriginal law only. It represents Indigenous clients and Band Councils, and its work centres on legal and historical research into Aboriginal and Treaty rights in Canada.
Does Slattery & Slattery represent Band Councils or individual clients?
Both. The firm represents Indigenous clients and Band Councils directly, and it also collaborates with outside legal counsel on files rather than working alone.
What kind of historical research does the firm do?
Alongside legal research on Aboriginal and Treaty rights, the firm does genealogical, or family, history research, work it describes as tying the past to the present.
Can Slattery & Slattery help with land claims or First Nations governance?
Yes. The firm's legal counsel, Michael Slattery, provides governance advice to First Nations, handles dispute resolution, and has land claims litigation experience involving Treaty rights, traditional territory, Aboriginal rights, and Aboriginal title.
Who leads the firm's research work?
Brian Slattery, the firm's research director, no longer practices law day to day and is a Professor Emeritus at Osgoode Hall Law School, with an academic career studying Aboriginal rights and constitutional law.
Where is Slattery & Slattery located and how can I reach the firm?
The firm's office is at 474 Bathurst Street, Suite 300, in Toronto. It can be reached by phone or email during business hours, Monday to Friday.

Where to find them

474 Bathurst Street, Suite 300, Toronto, Ontario M5T 2S6, Canada · 416-672-0408

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Listing compiled from the firm’s public website in August 2026. Verify licence status in the Law Society of Ontario directory ↗