Department profile
Lenczner Slaght

Dispute Resolution: Class Action (Defence)

Canada Guide 2026 : Nationwide - Canada


Lenczner Slaght

Rankings

About

Provided by Lenczner Slaght

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 three decades. For example, 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.

It’s that experience that has led to our lawyers being repeatedly recognized by various organizations as leaders in the class action bar.

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

Clients (11)

  • Accounting Firms
  • Banks
  • Financial Advisors
  • Insurance Companies
  • Investment Banks
  • Management Consultants
  • Manufacturers
  • Mining Companies
  • Pension Fund Managers
  • Pharmaceutical Companies
  • Retailers

Chambers Review

Provided by Chambers

Dispute Resolution: Class Action (Defence) - Nationwide - Canada

Band 3

Band 3


What the Team is Known For
Lenczner Slaght is a prominent Toronto litigation boutique commended for its performance in multi-defendant class actions. The firm frequently handles cases at the pre-certification, trial and appellate levels and represents clients from the financial services, insurance, manufacturing, mining and pharmaceutical sectors. The team is particularly well known for its expertise in securities, consumer protection, product liability and employment matters and is often selected for cases concerning professional negligence involving lawyers, accountants and physicians.

Work Highlights

Provided by Chambers

  • Lenczner Slaght acted for Canadian Medical Protective Association, representing a defendant physician in a class action brought by patients alleging the use of a unapproved substance in cosmetic procedures.

Strengths

Provided by Chambers

  • Lenczner Slaght's team has the perfect balance of seasoned and experienced litigators.

    Dispute Resolution: Class Action (Defence) respondentCanada
  • Lenczner Slaght has a full compliment of team players to handle the most complex matters.

    Dispute Resolution: Class Action (Defence) respondentCanada
  • Responsible, professional and a pleasure to deal with, Lenczner Slaght are very good advocates.

    Dispute Resolution: Class Action (Defence) respondentCanada
  • The Lenczner Slaght team is known for its strategic advocacy, deep trial experience and its ability to navigate intricate legal and procedural issues.

    Dispute Resolution: Class Action (Defence) respondentCanada

Notable Practitioners

Provided by Chambers

  • Band 2Peter Griffin
    Band 2Peter Griffin

    Peter Griffin

    Peter Griffin KC is a hugely well-regarded litigator with a stellar reputation in Canada. Based in Toronto, he handles class actions as part of his wider disputes practice, and has notable experience in product liability and professional negligence claims.
    • Peter Griffin is a top notch and approachable professional.

      Dispute Resolution: Class Action (Defence) respondentCanada
    • Peter is a talented lawyer.

      Dispute Resolution: Class Action (Defence) respondentCanada
  • Band 2Tom Curry
    Band 2Tom Curry

    Tom Curry

    Toronto-based Tom Curry is one of Canada's pre-eminent litigators. In addition to his single-plaintiff work, he attracts plaudits for his class action representation where he represents multiple prestigious clients from the technology, banking and automotive sectors.
    • Tom has a wealth of knowledge and experience. He is one of the top litigators in the country and a pleasure to work with.

      Dispute Resolution: Class Action (Defence) respondentCanada
    • Tom is devastatingly effective. He's on of the best trial lawyers in the country.

      Dispute Resolution: Class Action (Defence) respondentCanada
    • He's a leader you want on your side.

      Dispute Resolution: Class Action (Defence) respondentCanada
  • Band 4Paul-Erik Veel
    Band 4Paul-Erik Veel

    Paul-Erik Veel

    Paul-Erik Veel is highlighted for his representation of clients in complex First Nations, product liability and securities class actions.
    • Paul-Erik is a creative, smart legal analyst.

      Dispute Resolution: Class Action (Defence) respondentCanada
    • Paul-Erik Veel is extremely client-conscious and approachable.

      Dispute Resolution: Class Action (Defence) respondentCanada
    • Paul-Erik is nationally recognised as an expert in class action litigation. He understands what the client needs and provides expert advice.

      Dispute Resolution: Class Action (Defence) respondentCanada

Ranked Individuals at Lenczner Slaght (3)

Nationwide - Canada

  • Profile image of Peter Griffin KC

    Peter Griffin KC

    Dispute Resolution: Class Action (Defence)

    View profile
  • Profile image of Paul-Erik Veel

    Paul-Erik Veel

    Dispute Resolution: Class Action (Defence)

    View profile

Members

Provided by Lenczner Slaght

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership