Class Actions

A Canadian leader in class actions, Lenczner Slaght is one of the only firms in the country to have repeatedly litigated on behalf of defendants at the trial level. Our lawyers' class actions expertise has been sharpened through hands-on experience in a wide range of complex and technically demanding proceedings.

Our firm has defended many of Canada's most closely watched class action lawsuits over the past two decades. We successfully represented Danier in Kerr v. Danier Leather Inc. – from the outset of the action through to the groundbreaking decision at the Supreme Court of Canada. We also acted for Inco in a mass tort class proceeding, both in the original trial and on appeal.

Other notable class action cases include our representation of the McDonald's restaurant chain in a claim alleging misrepresentation in a marketing and promotion campaign. Currie v. McDonald's Restaurants of Canada Ltd. is now viewed as a landmark case addressing the treatment of cross-border jurisdiction claims.

Lenczner Slaght received the Class Action Law Firm of the Year Award at the 2013 Benchmark Canada Law Firm Awards.

Class Action Litigation Areas

Our nationally ranked litigators have represented Canadian and international clients across the spectrum of class action proceedings, including:

  • antitrust and competition act matters
  • consumer claims
  • deceptive and unfair trade practices
  • employment disputes
  • environmental issues
  • financial services
  • health and medical malpractice
  • insurance matters
  • mass torts
  • misleading advertising
  • negligence claims
  • pensions and employee benefits
  • product liability
  • securities and shareholder rights

Our Class Action Clients

The clients we've represented as defendants in class action litigation include:

  • accounting firms
  • banks
  • financial advisors
  • insurance companies
  • investment banks
  • management consultants
  • manufacturers
  • mining companies
  • pension fund managers
  • pharmaceutical companies
  • retailers

Extensive International Experience

Lenczner Slaght's class action work often spans international boundaries as a growing number of claims are launched in multiple jurisdictions. We advise clients based in the U.S., Europe, Asia and elsewhere on Canadian class action law as it pertains to international proceedings. We focus particularly on cross-border litigation between Canada and the U.S., whether handling Canadian aspects of actions initiated south of the border or pursuing related actions in Canada that involve identical or similar claims.

Expert Strategy

At Lenczner Slaght, we help clients respond to the daunting challenges of class actions with rigorous legal groundwork, innovative thinking and carefully planned litigation strategy. Our lawyers are accomplished courtroom litigators, admired by their peers for the knowledge and skills they bring to complex commercial cases.

Class action litigation can be expensive and time-consuming for all parties – particularly the companies and individuals against whom actions are brought. To reduce the burden of litigation and minimize long-term costs, we focus our efforts on defeating an action at an early stage, primarily by challenging attempts to certify it as a class proceeding . At this key certification stage, there are many opportunities to narrow the parties and issues raised in the litigation and, in some cases, bring it to a conclusion. Lenczner Slaght's reputation and courtroom skills enable us to make the most of these opportunities – to the benefit of our clients.