About Us
For more than 160 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
(4) Government Law

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.

“Voted by peers and colleagues as one of the Top 10 Ontario Regional Firms”
Canadian Lawyer
“Top 10 Development Firm in the GTA”
Novae Res Urbis

Fourteen lawyers from WeirFoulds have been appointed judges by the Federal government, the first in 1883 and the most recent one in 2021. 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 Ontario (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.

Arnup Cup

First awarded in 1988, the Arnup Cup is an annual trial advocacy competition for Ontario law schools. The Cup is named for the Honourable John D. Arnup QC, OC, who was a former member of the firm before being appointed to the Court of Appeal for Ontario. The winners of the Arnup Cup earn the right to compete in the Sopinka Cup, the national trial advocacy competition for Canadian law schools. WeirFoulds hosts an annual reception for the students participating in the Arnup Cup, continuing a tradition of litigation excellence at the firm.

SOC 2 Certification

WeirFoulds is committed to ensuring that our clients’ most sensitive data and information is secure, protected and confidential. Following a lengthy audit process, our digital security maintenance and data confidentiality processes have been fully certified as operating at SOC 2 compliance level, with the firm achieving the Trust Services Criteria in security and data confidentiality. Developed by the American Institute of CPAs (AICPA), SOC 2 is recognized as the highest possible data security compliance standard for service organizations. WeirFoulds achieved SOC 2 Certification consecutively in both 2023 and 2024.

Intellectual Leaders

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

  • Civil Procedure – Ontario Annual Practice published by Thomson Reuters
  • Land Use Planning – Ontario Planning Practice published by Thomson Reuters
  • Litigation – Electronic Documents: Records Management, e-Discovery and Trial, published by Thomson Reuters
  • Municipal Law – The Ontario Municipal Act: A User’s Manual, published by Thomson Reuters
  • 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.

SCG Legal

WeirFoulds is a proud member of SCG Legal, an international network of more than 148 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.

SCG Legal Logo