Lenczner Slaght

Toronto Office

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Managing Partner: Tom Curry
Number of partners: 25(plus 11 Counsel)
Number of lawyers: 75
Languages: English, Estonian, French, German, Hebrew, Spanish

Firm Overview:
Widely recognised as Canada’s leading litigation practice, Lenczner Slaght has successfully represented clients’ interests in some of the most complex, high-profile cases in Canadian legal history. In short, the firm and its lawyers are expert litigators.

What makes Lenczner Slaght expert litigators?
Experience: Lenczner Slaght spends more time in court.

The firm’s lawyers are advocates, first and foremost. Over the firm’s 28 years, the advocates at Lenczner Slaght have acted for clients in over 17,000 cases, conducting more than 500 trials, arbitrations and tribunal hearings. In total, the current team has spent more than 6,500 days in hearings. Lenczner Slaght knows courts, and the courts know it. The firm’s experience is why people turn to it in the most difficult situations. Lenczner Slaght’s experience and credibility with the courts mean that its lawyers are expert litigators.

Knowledge: Lenczner Slaght understands the law and its clients.
Lenczner Slaght complements its superior advocacy with a deep understanding of both the law and its clients. The firm’s ranks are filled with recognised experts in their practice areas, not to mention a former judge of the Supreme Court of Canada. Backed by a team of first-rate research lawyers, the firm’s advocates know the ins and outs of the law, because they’ve argued some of the leading cases across many practice areas.

Lenczner Slaght’s litigators represent a diverse roster of clients, from leading multinational technology and pharmaceutical companies, to some of Canada’s largest financial institutions, to professionals, executives, business owners and public figures. They know the law, but they also know their clients and how their disputes fit into their overall business objectives and strategy. The bottom line is that Lenczner Slaght has experienced litigators who combine advocacy and subject-matter expertise.

Precision: Lenczner Slaght offers clarity and judgment.
The firm’s litigators round out their experience and knowledge with sound judgment. They are direct with both their clients and the courts. They are fearless yet professional, fierce yet fair. Litigation can be complex, but the firm’s approach is focused. Litigators at Lenczner Slaght distil complicated and abstract concepts into sharp, winning arguments. And that gets results.

Main Areas of Practice:
Class Actions
Commercial Litigation
Competition & Antitrust
Construction & Infrastructure
Defamation & Media
Insolvency & Restructuring
Intellectual Property
Product Liability
Professional Liability & Regulation
Public Law
Securities Litigation
Trusts & Estates Litigation

Including a broad range of disputes arising in virtually every aspect of commercial and professional activity. The firm’s senior litigators are well known and respected in the appellate courts. They are frequently retained as counsel to provide opinions on and argue appeals.

Including complex cases in multiple, often competing jurisdictions in a wide range of business sectors that include infrastructure, mining, oil and gas, technology and financial services representing Canadian and international clients in disputes governed by all of the widely recognised rules of arbitration.

Class Actions:
Including Canadian, cross-border and multi-jurisdictional cases involving shareholder and securities claims, negligence, product liability, health and medical malpractice, insurance, pensions and environmental liability.

Commercial Litigation:
Including complex corporate and securities matters, contract disputes, regulatory proceedings, competition matters, defamation, oppression and other statutory claims, franchising matters and real property litigation.

Competition & Antitrust:
Including individual and class actions alleging breaches of the Competition Act such as misleading advertising, price fixing and conspiracy and all types of regulatory and criminal investigations, including those conducted by the federal Competition Bureau.

Construction & Infrastructure:
Including acting for owners and developers, contractors and subcontractors, lenders and underwriters, and architecture and engineering firms in the full spectrum of construction matters, from insurance and liability claims, to progress payments and holdbacks, to defects, omissions and other performance issues on projects ranging from residential developments to multi-billion-dollar infrastructure projects across Canada and internationally.

Defamation & Media:
Including acting as litigation or advisory counsel in libel issues arising across all print, broadcast and digital media channels and representing both plaintiffs and defendants through libel trials, on appeal and before the Supreme Court of Canada.


Including employment strategy, policies and practices, employments standards, restrictive covenants, confidentiality, wrongful dismissal and workplace management.

Insolvency & Restructuring:
Including commercial reorganisations and restructurings, receiverships, bankruptcies and other facets of insolvency litigation, creditors’ rights and secured transaction disputes.

Including the full spectrum of insurance, re-insurance matters and coverage including expected or intended damage or injury; known loss; trigger of coverage; allocation among insurers; sudden and accidental, as well as the absolute, pollution exclusion; late notice; clean-up costs as damages; owned property exclusion; alienated premises exclusion; post-acquisition coverage; drop-down issues and the obligations owed by a primary insurer to an excess insurer.

Intellectual Property:
Including matters involving patents, trade-marks, copyright and competition law—acting for national and multinational clients in the pharmaceutical (both generic and innovators), biotech, medical devices, nutrition, media, recording and broadcasting industries, among others.

Professional Liability & Regulation:
Including representation or prosecution of various regulated professionals including physicians, psychologists, dentists, engineers, nurses, lawyers, investment advisors and others before investigative and disciplinary tribunals, as well as boards and committees of professional organisations, self-governing bodies and in civil proceedings.

Product Liability:
Including liability litigation support to makers of: pharmaceuticals and medical devices, processed food and beverages, personal care products, motor vehicles, trains, boats, and planes, elevators and escalators, heating and plumbing systems, construction and building materials, industrial equipment, and computer hardware and software in cases involving multiple insurer claims that often cross borders.

Public Law:
Including acting as counsel for all levels of government, for government agencies and Crown corporations and for companies conducting business with governments and their agencies, as well as for individuals and organisations dealing with specific regulators and/or overall regulatory regimes.

Securities Litigation:
Including the defence of claims against investment dealers and advisors, class proceedings alleging breach of public disclosure requirements, representation before securities commissions and other regulators and directing internal investigations.

Trusts & Estates Litigation:
Including complex, high-profile, high-stakes disputes and volatile emergency situations where preservation of assets is a priority, especially in estates disputes involving incapacity and related issues.