For over 150 years, the lawyers of WeirFoulds have been proud to serve our clients in their most difficult and complex matters. We are the firm of choice for discerning clients within our core areas of practice: 1) Litigation; (2) Corporate; (3) Property; and (4) Government Law. Within these core areas, as well as key sub-specialties, we address highly sophisticated legal challenges. We have acted in some of Canada's most significant mandates and have represented clients in many landmark cases. Reflecting the firm's focus, our lawyers are consistently recognized as leaders in their chosen areas of practice and in the profession at large.


WeirFoulds lawyers author or edit leading reference works for lawyers on:

  • Civil Procedure — Ontario Annual Practice published by Canada Law Book
  • Land Use Planning — Ontario Planning Practice published by Canada Law Book
  • Litigation — Electronic Documents: Records Management, e-Discovery and Trial, published by Canada Law Book
  • Municipal Law — The Ontario Municipal Act: A User's Manual, published by Thomson Carswell
  • Municipal Conflict of Interest — Ontario's Municipal Conflict of Interest Act, published by Municipal World
  • Real Estate — Real Estate Law, 4th. ed, published by Emond Montgomery

Our lawyers have also written dozens of peer-reviewed academic articles in leading law journals in Canada and other countries and act as adjunct professors of law at several of Canada's leading faculties of law.


Thirteen lawyers from WeirFoulds have been appointed judges by the Federal government, the first in 1883 and most recent one in 2005. Eight of these judges were appointed to courts of appeal in Canada, including the Supreme Court of Canada.


Past and current lawyers have distinguished themselves as Treasurers (heads) and Benchers (governors) of the Law Society of Upper Canada, which is the regulatory body for the legal profession in Ontario, as presidents of the Canadian Bar Association and other legal bodies, as recipients of the Law Society Medal for contributions to the legal profession, and as recipients of the Order of Canada for contributions to Canadian public life. Many of our lawyers also sit on bar committees, such as the Committee examining amendments to the Rules of Civil Procedure.

SCG Legal

WeirFoulds is a proud member of SCG Legal, an international network of more than 145 carefully selected law firms that are well-regarded within their legal, business and political communities. Member firms are vetted annually based on specific criteria of excellence, including legal expertise, local market knowledge, and the quality of client services.

By uniting our professional skills, expertise and influence with members of this network, we offer companies in virtually every industry qualified guidance and representation for international and multi-jurisdictional matters.

Member firms of SCG Legal practice independently and not in a relationship for the joint practice of law.


WeirFoulds LLP is pleased to announce that Lisa Borsook, Executive Partner, has signed the Statement of Principles of the Law Firm Diversity and Inclusion Network, as part of the firm's commitment to diversity and inclusion in the legal community.

WeirFoulds joins over 15 law firms across Canada who have signed the Statement of Principles. Law firms in the Network aim to share ideas and work together to promote diversity and encourage a culture of inclusion in their firms and the legal professional generally, to attract and retain the best talent, and best serve their clients.

Click on the pdf below for the Statement of Principles in detail.



Ranked in the Top 10 in Ontario, Corporate Commercial Litigation
Best Lawyers in Canada
Ranked in the Top 10 in Administrative and Public Law, Canada
Best Lawyers in Canada
Voted by peers and colleagues as No. 1 regional law firm in 2015 Survey for the Top 10 Ontario Regional Firms
Canadian Lawyer
Top 10 Development Firm in the GTA
Novae Res Urbis