About Affleck Greene McMurtry LLP

Affleck Greene McMurtry LLP (AGM) is a Toronto firm of trial lawyers built around business disputes, competition law and regulatory fights. It counsels companies on how they plan to do business and on staying within the Competition Act and other rules, defends them when lawsuits, investigations or prosecutions arrive, and goes to court on commercial and competition disputes, from class actions to private actions.

Its clients run from large financial institutions and governments to mid-sized and bigger enterprises. Michael Binetti has been AGM's managing partner since 2013.

Ken Dekker has argued at every level of court in Ontario and at the Supreme Court of Canada, and Meredith Hayward's appearances add the British Columbia Court of Appeal to that list. Clients who'd rather work in another language can meet with Adam Casey in French, Masiel Matus in Spanish or Jeanette Saliba in Arabic.

History

AGM began as a breakaway from Fasken. Donald Affleck had started practising at Fasken Calvin MacKenzie Williston & Swackhamer after finishing law school at the University of Toronto in 1964, and in 1992 Affleck and other partners who'd left Fasken together co-founded Kelly Affleck Greene. Peter Greene was another of the founding partners. In 2003 the firm took its current name, Affleck Greene McMurtry.

Affleck's competition law career lasted more than 50 years. Along the way Affleck was chief counsel to the Royal Commission on Newspapers from 1980 to 1982, sat as an arbitrator in the NAFTA softwood lumber anti-dumping dispute, and co-wrote the text Canadian Competition Law with Wayne McCracken.

Several of today's lawyers reach back to those early years or grew up inside the firm. Ken Dekker joined Kelly Affleck Greene as an associate in 1998 and has been an AGM partner since 2006, and Meredith Hayward came to Kelly Affleck Greene in 2000. Michael Binetti did articles of clerkship at AGM in 2005 and 2006, and Masiel Matus articled there in 2012 and 2013 before making partner in 2021.

Practice areas

Corporate and commercial litigation

AGM takes on business disputes of every kind, from contract breaches and product liability claims to defamation and damage to reputation, along with negligence claims against lawyers, auditors, accountants and investment advisors. Ken Dekker's work has included helping a food processor obtain a judgment that made its insurer cover losses from the August 2003 blackout.

Our guide: Litigation and Dispute Resolution in Toronto

Competition law

The competition group advises companies on Competition Act compliance, defends them against Competition Bureau investigations and class actions, and helps them get mergers cleared. It often works in Canada on cartel and class action matters that span several countries, alongside firms abroad. Senior counsel John F. Rook, KC brings more than 50 years of experience across administrative, commercial and competition law.

Class action defence

AGM defends businesses in class actions brought under the Competition Act or for related economic torts, under the Securities Act's secondary market liability provisions, and over product liability. Many of these Canadian proceedings run side by side with class actions in the United States.

Securities litigation

Lawyers here act for clients under investigation or facing enforcement by securities regulators such as the OSC. They also defend securities class actions that investors bring against public companies and their auditors, officers and directors.

Insurance defence

AGM acts for insurers and the people and companies they insure. The defence side covers errors and omissions claims against professionals (the securities industry among them), directors' and officers' claims, legal expense insurance and bond claims. For insurers, the firm also handles fidelity and surety bond claims and subrogated claims, and serves as class action monitoring counsel.

Construction litigation

Construction work covers bid irregularities, lien claims, breach of trust, contract breaches and delay or liquidated damages claims, for owners and contractors alike. AGM is regularly on the defence side for insurers and sureties facing claims on performance bonds and on labour and material payment bonds.

Shareholder and partnership disputes

When business relationships break down, AGM helps shareholders, partners, creditors, joint ventures and franchise parties sort out the fight, through oppression remedies, winding-up applications and damages suits. It also guides boards and shareholders through governance questions while a dispute is under way.

Regulatory and administrative law

AGM defends businesses through each stage of a regulatory or administrative case, from the investigation to tribunal hearings and judicial review, and it challenges municipal, provincial and federal governments. Its tribunal work reaches the CRTC, the Toronto Licencing Tribunal and provincial energy regulators like the Alberta Utilities Commission. Michael Binetti acted for owners of traditional Toronto taxicab licences in partly quashing the city's then-new taxicab by-law.

Intellectual property disputes

Vik Tenekjian joined AGM as Counsel and brings deep experience in pharmaceutical patent proceedings under the Patented Medicines (Notice of Compliance) Regulations. Associate Heather Lindsay worked on pharmaceutical patent cases and complicated damages claims at the Federal Court before coming to AGM.

Good to know

A person using a wheelchairWheelchair accessible

How Affleck Greene McMurtry LLP works

AGM starts from the end. It first works out the outcome the client should aim for, then works back to the negotiation, arbitration or litigation strategy that gets there. Problem solving comes first, and the firm stands ready to take a case to court when that's what it takes. On investor loss claims, it weighs going to trial against the value of a negotiated settlement.

Reported cases

  • Hampton Securities Limited v. Dean, 2018 ONCA 901

    Christopher Somerville and Daphne Hooper acted for the respondent, Christina Dean, a former proprietary trader at Hampton Securities. The court dismissed Hampton's appeal from a trial judgment finding Ms. Dean owed it nothing and had been constructively dismissed.

  • Canadian National Railway Company v. Kitchener (City), 2015 ONCA 131

    Michael Binetti and David N. Vaillancourt acted for the respondent Hogg Fuel & Supply Limited. The court dismissed CNR's appeal from an order dismissing for delay its action, which CNR had started in 1989.

Decisions where the firm's lawyers appeared as counsel, from public court records. Past cases don't predict future results.

Milestones & recognition

  • AGM's competition and antitrust practice is recognized in Chambers, GCR 100 and Lexpert.
  • Benchmark Litigation Canada 2026 gave AGM a Recommended firm ranking for Dispute Resolution in Ontario and named partners Kenneth A. Dekker and Hilary Book Litigation Stars.
  • Best Lawyers recognized seven AGM lawyers in the 2027 editions of The Best Lawyers in Canada and Best Lawyers: Ones to Watch in Canada.
  • John F. Rook, KC is a Fellow of the Chartered Institute of Arbitrators.
  • David Vaillancourt is lead author of the Canadian chapter of The Private Competition Enforcement Review.
  • Meredith Hayward co-wrote a paper on judicial review with The Honourable Mr. Justice Krever.
  • Christopher Somerville serves as legal counsel to the Canadian Crime Stoppers Association and the Ontario Association of Crime Stoppers.
  • On March 23, 2026, managing partner Michael Binetti went on CTV's Your Morning to talk about Ontario's proposed ban on reselling tickets above face value.

In the community

  • AGM supports University of the West Indies scholarships and bursaries that help Caribbean students get past financial barriers to their studies.
  • William McLennan volunteers as amicus curiae on the Commercial and Estates Lists of the Ontario Superior Court of Justice, and judges The Wilson Moot and supervises the University of Toronto Upper-Year Moot.
  • AGM publishes The Litigator (thelitigator.ca), where its lawyers and articling students write about Canadian court decisions and legal developments.

Affiliations & connections

  • The Advocates' Society: Hilary Book was named president of The Advocates' Society for 2025-2026, and Ken Dekker and David Vaillancourt are members.
  • Canadian Bar Association: David Vaillancourt has served as chair and vice-chair of a committee in the CBA's Competition Law section, and Michael Binetti has chaired its Marketing Practices Committee.
  • Toronto Lawyers Association: Hilary Book, Meredith Hayward and William McLennan belong to the Toronto Lawyers Association.

This firm’s lawyers at a glance

Called to the bar
1998–2024 · median 17 years in practice 5 of 12 lawyers
Law schools
Osgoode Hall Law School (2), Schulich School of Law at Dalhousie University, University of Western Ontario, University of Windsor 5 of 12 lawyers
Languages on the roster
Arabic, English

The neighbourhood

AGM sits close to the law courts in Toronto's Financial District, the city's main financial district and widely seen as the heart of Canada's finance industry. Queen is the nearest subway stop, and Osgoode, St. Andrew, Union and King stations are all an easy walk away.

Osgoode station takes its name, by way of Osgoode Hall, from William Osgoode, and the hall today is home to the Ontario Court of Appeal, the Divisional Court of the Superior Court of Justice and the Law Society of Ontario. Visitors who drive can park at the Bay Adelaide Centre, entered from Adelaide and Richmond between Bay and Yonge, or at First Canadian Place, entered from Adelaide before Sheppard and York.

Frequently asked questions

Another firm has a conflict on my business dispute. Does AGM's Hilary Book take conflict referrals?
AGM partner Hilary Book continues to welcome conflict referrals at the firm, and many of Book's clients come by way of referrals from other lawyers.
A city has suspended my construction company from bidding on its tenders. Has AGM dealt with that before?
AGM managing partner Michael Binetti won an interim and interlocutory injunction putting on hold a temporary suspension, imposed by the City of Toronto's Chief Purchasing Official, that barred a construction company from bidding on and taking part in city construction tenders.
Will AGM defend a Securities Act prosecution brought by the OSC's Joint Serious Offences Team?
AGM partner Masiel Matus defends Securities Act prosecutions that the Joint Serious Offences Team brings on behalf of the OSC. Matus also acts for dealers, advisors and other capital markets players when investors sue over losses, and in disputes involving cryptocurrency.
Has AGM made submissions at the Canadian International Trade Tribunal on dumped steel?
AGM partner Christopher Somerville made submissions for Canadian workers at two trade hearings that found dumped steel goods had caused injury, one involving goods from Germany and Taiwan and the other goods from Turkey and Vietnam.
Does AGM's intellectual property counsel have experience with counterfeit software cases?
AGM's Vik Tenekjian acted for Microsoft Corporation in a copyright infringement action over the unauthorized sale of counterfeit software, and for Adobe Systems in a similar action over the unauthorized distribution of counterfeit software.

Where to find them

365 Bay Street, Suite 200, Toronto, Ontario M5H 2V1, Canada · 416-360-2800

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This listing was generated by AI from public sources in October 2026. It may contain errors, and we can’t guarantee it’s accurate or complete. Before you rely on anything here, verify it on the firm’s own website. Verify licence status in the Law Society of Ontario directory ↗

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