Our lawyers are distinguished by their wealth of litigation experience – gained through regular appearances in all levels of the courts, before administrative and regulatory tribunals, as well as mediation and arbitration. Lenczner Slaght partners, ranked among the best of their peers nationally, lead a recruitment and mentoring program that attracts gifted litigators who are committed to upholding the highest professional standards.

From commercial disputes and class actions to cross-border matters and professional regulation, we bring expert strategy – backed by rigorous research, data management and administrative support – to highly demanding cases in all litigation practice areas.

Chambers Global

For the 17th consecutive year, Lenczner Slaght has been ranked by Chambers Global 2019 in the area of Dispute Resolution alongside notable full-service, national and international firms.

In addition to the firm rankings, the following expert litigators were also ranked:

Commentators praise the firm for its "strong expertise in both advocacy and strategy," while others note: "The team has the depth of talented and knowledgeable resources to handle the largest and most complex of trials, and its lawyers are extraordinarily effective problem solvers."

Chambers Canada

After extensive research and interviews with firm clients and legal professionals across Canada, Chambers Canada 2020 highlights Lenczner Slaght’s expertise in the following areas:

  • Dispute Resolution: Class Actions (Defence) (Nationwide – Canada)
  • Healthcare (Nationwide – Canada)
  • Litigation: General Commercial (Nationwide – Canada)
  • Litigation: General Commercial (Ontario)
  • Intellectual Property (Nationwide – Canada)
  • Insurance: Dispute Resolution (Nationwide – Canada)
  • Litigation: Securities (Ontario)

In addition to the firm’s rankings, 13 Lenczner Slaght lawyers are ranked as some of the top litigators in their field for their exceptional expertise and knowledge.

  • Sana Halwani – Intellectual Property: Litigation (Nationwide – Canada)
  • Shara N. Roy – Litigation: Securities (Ontario)
  • Monique Jilesen – Litigation: General Commercial (Ontario)
  • Risa Kirshblum – Healthcare (Nationwide – Canada)
  • Matthew Sammon – Healthcare (Nationwide – Canada)
  • Lawrence E. Thacker – Dispute Resolution: Arbitration (Nationwide – Canada)
  • Tom Curry – Dispute Resolution: Class Action (Defence) (Nationwide – Canada); Healthcare (Nationwide – Canada); Litigation: General Commercial (Ontario)
  • William C. McDowell – Litigation: Administrative & Public Law (Ontario)
  • Peter Griffin – Dispute Resolution: Class Action (Defence) (Nationwide – Canada); Litigation: General Commercial (Ontario); Litigation: Securities (Ontario)
  • Glenn Smith – Insurance: Dispute Resolution (Nationwide – Canada)
  • Ronald Slaght – Litigation: General Commercial (Ontario); Dispute Resolution: Most in Demand Arbitrators (Nationwide – Canada)
  • Alan Lenczner – Litigation: General Commercial (Ontario)
  • Ian Binnie – Dispute Resolution: Most in Demand Arbitrators (Nationwide – Canada)

Canadian Legal Lexpert® Directory

The 2019 Canadian Legal Lexpert® Directory recognizes the professional excellence of 24 lawyers at Lenczner Slaght, who have been ranked among Canada's best in the annual peer-based ratings conducted by Lexpert, a leading source of news and information about the Canadian legal profession.

The following Lenczner Slaght lawyers have been selected through peer surveys as leading practitioners in their field: Ian Binnie, C.C., Q.C., Alan J. Lenczner, Ronald G. Slaght, Glenn Smith, Peter Griffin, Tom Curry, William C. McDowell, Peter Osborne, Anne Posno, Lawrence Thacker, Risa Kirshblum, Mark VenezianoNina BombierMonique Jilesen, Eli Lederman, Matthew Sammon, Rebecca Jones, Jaan Lilles, Shara Roy, Dena Varah, Sana Halwani, Matthew B. LernerPaul-Erik Veel and Brian Kolenda.

Our leading lawyers are recognized for their expertise across 15 different practice areas, including Class Actions, Commercial Arbitration, Commercial Insurance Litigation, Corporate Commercial Litigation, Defamation & Media Litigation, Directors’ & Officers’ Liability Litigation, Estate & Personal Tax Planning, Insolvency & Restructuring, Intellectual Property, Intellectual Property Litigation, Medical Negligence, Personal Injury, Professional Liability, Public Law Litigation, and Securities Litigation.

Also in this directory, Lexpert has once again placed Lenczner Slaght at the centre of the Bulls Eye – its highest possible rating for a litigation practice.

Click here for the Lexpert® "Litigation – Toronto" Bull's-eye graphic.

Click here for the Lexpert® "Commercial Litigation – Toronto" Bull's-eye graphic.

Benchmark Canada

Long venerated as a "litigator's dream shop," Toronto's Lenczner Slaght remains "virtually unchallenged for the depth of its trial-tested talent pool." Recognized in the 2019 Benchmark Canada rankings are the following leading litigators:

Top 50 Trial Lawyers in Canada, Litigation Stars: Peter GriffinTom Curry, Monique Jileson

Litigation Stars: William C. McDowellPeter J. Osborne, Lawrence E. ThackerMark VenezianoEli S. LedermanMatthew SammonRebecca Jones, Sana Halwani

Future Stars: Jaan Lilles, Shara N. Roy, Dena N. Varah, Matthew B. LernerAndrew ParleyPaul-Erik Veel 

Interviewed by Benchmark Litigation in 2017, a peer raves, "In that entire team, I haven't seen anything even closely resembling a weak link. They are a full-tilt onslaught of litigation talent, but mixed with civility. These are people that it's a pleasure to litigate against; it's hard-fought, elbows-up stuff but all throughout there is not one moment where you wonder if this is what you want to be doing with the rest of your life."

Canadian Lawyer

Lenczner Slaght was again recognized as one of Canada's Top 10 litigation boutiques in the latest annual review published by Canadian Lawyer magazine.

IAM Patent 1000

IAM Patent 1000, the guide to leading private practice patent professionals and firms, is dedicated to recognizing best-in-class patent prosecution, licensing and litigation practitioners on a global basis. 

After a comprehensive qualitative research process that included peer and client feedback, Lenczner Slaght is ranked once again in the silver level by IAM Patent 1000. In addition, outstanding leading litigator, Sana Halwani (Bronze), is also recognized.

Best Lawyers in Canada

Best Lawyers in Canada is an annual guide to the international legal profession.

Since the annual peer ratings were inaugurated in Canada in 2006, Lenczner Slaght has been recognized for the excellence of its practitioners in a wide range of areas.

The 2020 Best Lawyers in Canada guide recognizes the following Lenczner Slaght lawyers: Ian Binnie, Alan J. Lenczner, Ronald G. Slaght, Glenn Smith, Peter Griffin, Tom Curry, William C. McDowell, Peter J. Osborne, Anne E. Posno, Lawrence E. Thacker, Risa M. Kirshblum, Mark A. Veneziano, Nina Bombier, Monique JilesenEli S. Lederman, Matthew Sammon, Rebecca Jones, Colin Johnston, Jaan Lilles, Shara N. Roy, Dena N. Varah, Sana Halwani, Matthew B. Lerner, Andrew ParleyPaul-Erik Veel, Ian MacLeod, Andrew Porter, and Brendan F. Morrison.

In addition to the rankings, Lenczner Slaght was named Law Firm of the Year in Appellate Practice once again.

Lexpert Guide to the Leading US/Canada Cross-Border Lawyers

The 2019 Lexpert Guide to the Leading US/Canada Cross-Border Lawyers in Canada recognizes leading lawyers who have significant expertise in cross-border cases. The rankings are a result of peer review surveys completed by senior members of the legal profession.

The Lenczner Slaght lawyers that are Most Frequently Recommended for their cross-border expertise in Dispute Resolution include:

Lexpert/ROB Special Edition: Canada's Leading Litigation Lawyers

Lenczner Slaght is proud to announce that 13 of our lawyers have been singled out for their extensive courtroom experience in the 2018 Lexpert/ROB Special Edition: Canada's Leading Litigation Lawyers.

The rankings, determined by an in-depth peer review process, are also published in the December 2018 issue of the Globe and Mail’s Report on Business magazine.

"Recognition of so many of our lawyers for their litigation excellence reflects our commitment to training, mentoring and developing top notch skills in our colleagues" said Tom Curry, managing partner of Lenczner Slaght. "We are committed to continuing to demonstrate to our clients that they have retained the very best to take on the challenges of high risk and high profile litigation matters.”

Congratulations to the prominent litigators ranked:

Lexpert/American Lawyer Guide to the Leading 500 Lawyers in Canada

Click here for the Lexpert® "Litigation – Toronto" Bull's-eye graphic.

Click here for the Lexpert® "Commercial Litigation – Toronto" Bull's-eye graphic.

“We are pleased to once again be recognized by our peers as Canada’s foremost litigation practice”, said Tom Curry, Managing Partner of Lenczner Slaght. “Remaining in the centre of the Lexpert Bull’s-Eye for the 18th consecutive year is a reflection of the commitment of every member of our firm to excellence in advocacy.”

Based on extensive peer surveys, the bull's-eye charts are created using a complex point system that identifies lawyers who have been consistently cited as leaders in their areas of practice. Lenczner Slaght has held the centre position since the bull's-eye introduction in 2002 by Lexpert, a leading source of news and information about the Canadian legal profession.

We are also proud to announce that Lenczner Slaght has the highest number of lawyers ranked in Corporate Commercial Litigation in the 2019 Lexpert®/American Lawyer Guide to the Leading 500 Lawyers in Canada.

The following eight expert litigators are recognized for their excellence:

  • Monique Jilesen – Corporate Commercial Litigation
  • Peter J. Osborne – Corporate Commercial Litigation
  • William C. McDowell – Corporate Commercial Litigation
  • Tom Curry – Class Actions; Corporate Commercial Litigation; Directors' and Officers' Liability Litigation; Securities Litigation
  • Peter Griffin – Class Actions; Corporate Commercial Litigation; Directors’ & Officers’ Liability Litigation, Securities Litigation
  • Ronald G. Slaght – Corporate Commercial Litigation
  • Alan J. Lenczner – Corporate Commercial Litigation
  • Ian Binnie –  Arbitration; Corporate Commercial Litigation

Legal 500 Canada

Canada’s leading litigation firm is not only ranked in Tier 1 for Dispute Resolution, the firm is also recognized for its expertise in Insurance, Restructuring and Insolvency, Intellectual Property, and Labour and Employment.

Based on comprehensive research, client feedback, submissions, and interviews with leading lawyers in the industry, the Legal 500 rankings highlight the “practice area teams who are providing the most cutting edge and innovative advice to corporate counsel.”

Dispute Resolution (Tier 1)

Next Generation Lawyer:

  • Monique Jilesen

Leading Lawyers:

  • Tom Curry
  • Peter J. Osborne
  • Peter Griffin
  • Ronald G. Slaght
  • Alan J. Lenczner

Legal 500 had this to say about our expert litigators:

The firm’s ‘formidably deep bench’ comprises ‘well-trained and hardworking subject matter experts’, with its heavy-hitters are singled out as ‘at the top of their game’. In particular, the ‘very tactical’ Peter Griffin is a ‘master of getting to the point quickly and effectively’ and handles a broad spread of corporate and commercial litigation, class actions, securities matters and contentious insolvency cases. Managing partner Tom Curry is also lauded, with sources commending him as a ‘wonderful performer and manager of cases, and also reassuring with clients and full of ideas’. The group can also still rely on the huge experience of  ‘superb litigators’ Ronald Slaght QC and Alan Lenczner QC. Among the younger stars, Peter Osborne is ‘very strategic, capable, calm and confident’, and Monique Jilesen is a ‘superb advocate who has all the skills’.

Insurance (Tier 3)

Leading Lawyer:

  • Glenn Smith

Recommended Lawyer: Nina Bombier

Toronto boutique Lenczner Slaght LLP draws upon its top-tier litigation practice to cover the full scope of contentious policy, coverage and defence matters, with notable expertise in high-stakes and complex cases. Founding partner Glenn Smith leads the department alongside Nina Bombier.

Restructuring and Insolvency (Tier 4)

Recommended Lawyers: Peter Griffin and Peter J. Osborne

A strong choice for contentious mandates, Lenczner Slaght LLP is ‘at the top of the game from a litigation perspective and can hold its own with the best of them’. Peter Griffin, ‘a leader in any area he chooses to practise in’, recently advised on an application to appoint a receiver. Key contact Peter Osborne is ‘bright and creative, while remaining pragmatic and likeable’.

Intellectual Property (Tier 4)

Recommended Lawyers: Sana Halwani

Lenczner Slaght LLP’s IP practice, in line with its signature strength, exclusively handles contentious matters. The firm is a key contender for complex and precedent-setting patent litigation and brings to bear unrivalled trial experience on biologic-related cases. Other significant areas of expertise include IT, trade secrets, copyright, trademarks and confidential information. Sana Halwani is the name to note.

Labour and Employment (Tier 5)

Recommended Lawyers: Matthew Sammon

Lenczner Slaght LLP’s focus on contentious work translates to a steady stream of  high-stakes labour and employment disputes — it also provides guidance on strategy and policy with a view to reduce litigation risk. Among Matthew Sammon’s recent files, he advised on a complex confidential information case.

About the Legal 500

The Legal 500 rankings are based on a series of criteria that recognize the practice area teams who provide the most cutting edge and innovative advice to corporate counsel. The research is based on feedback from 300,000 clients worldwide, submissions from law firms and interviews with leading private practice lawyers, and a team of researchers who have unrivalled experience in the legal market.

Who's Who Legal

Lenczner Slaght “boasts a strong litigation offering,” achieving a total of seven expert litigators ranked in the latest edition of Who's Who Legal: Canada.

Who's Who Legal: Canada is an annually published directory of leading Canadian lawyers across 35 areas of business law, based on comprehensive peer review surveys and interviews with general counsel and lawyers in private practice.

The following outstanding Lenczner Slaght lawyers are ranked:

The following outstanding Lenczner Slaght lawyers are also ranked in Who's Who Legal: Litigation.