28 lawyers · Waterloo Region, City of Toronto, Montréal and 7 more locations
One of 54 law firms listed in Waterloo, and one of 28 handling Business & Corporate Law.
Virtual appointmentsMiller Thomson LLP is a national business law firm, with more than 525 lawyers working from 10 offices in five provinces, Quebec included. Its Corporate Group alone has well over 200 members, placed in every one of those offices, and Enzo Di Iorio chairs the firm.
Here in Waterloo Region, Andrew Roth leads the office as managing partner, with a practice that reaches into manufacturing, finance and real estate development. Roth and Kenneth R. Rosenstein, a Toronto partner who serves as the firm's Ontario regional managing partner, are the office's key contacts, and the team works from Suite 300 at 115 King Street South in Waterloo.
Deal work from the office includes David Schnurr's role as counsel to Mai Investments when it bought Eclipse Automation. Like each of the firm's offices, Waterloo hires its own summer law students, in first or second year depending on what the office needs, along with articling students.
For matters that cross borders, the firm's lawyers are active in international legal organizations, among them the American Bar Association and the International Bar Association.
The firm began as Miller, Thomson, Hicks & Sedgewick, a group of six lawyers in Toronto. It then spread west and east through mergers: Cook Duke Cox in Edmonton and Calgary in 1999, Swinton & Company in Vancouver in 2000, Pouliot Mercure in Montréal in 2005 and Balfour Moss LLP in Regina and Saskatoon in 2010.
Closer to home, the firm's Kitchener-Waterloo presence came from a 2002 merger with Sims Clement and Eastman, and a 2003 merger with Kearns McKinnon brought in Guelph. The Waterloo Region office's roots go back to 1858, when W.H. Bowlby opened a firm on King Street, and the office has now served the region for over 150 years.
Business & Corporate Law
Civil Litigation & Dispute Resolution
Construction Law
Insurance Law
Real Estate Law
Wills, Estates & Trusts
Employment & Labour Law
Tax Law
Intellectual Property
Technology & Startups
Administrative & Regulatory Law
Bankruptcy & Insolvency
Class Actions
Indigenous Law
Immigration Law
Health Law
In Waterloo, Andrew Roth's deal work includes acting for Tigercat International Inc. on the sale of its SPL Controls shares.
Family offices, business owners and wealthy individuals turn to the private client services group for tailored advice. In Waterloo, partner Christopher Crisman-Cox co-edits the firm's Estate Litigation Blog.
Bill Dahms has acted for many land developers on commercial and residential projects, condominiums among them. The wider real estate group covers portfolio restructuring, land use entitlements, condo development and municipal tax assessment litigation.
The class actions team acts on the defence side, and it also represents government bodies and non-profits. One matter was a proposed class action against a provincial health authority over its oversight of a radiologist's diagnostic imaging practice.
David Schnurr is registered as both a patent agent and a trademark agent in Canada and the U.S., and leads the firm's ElevateIP and Intellectual Property Ontario (IPON) service teams.
Many members of the life sciences group are registered patent agents whose scientific training spans fields such as chemistry, genetics, neuroscience and pharmacology.
Clients of the health group include private clinics, regional health authorities and other providers of health services. The group also runs Coffee Talk, a free webinar series covering industry trends and new legislation.
Evon Gayle, an associate working from Waterloo Region and Toronto, advises public and private sector employers on human resources and workplace matters. The firm's Labour & Employment Annual Virtual Conference has a 2026 edition.
Emily Compton, a Waterloo Region associate, practises in employment law, insurance litigation and commercial litigation, and acted for Economical Insurance in a Licence Appeal Tribunal decision that upheld the denial of a minor injury claim.
The environmental group acted for the municipality in the Walkerton Water Inquiry, along with the regulatory, enforcement and remedial work that came with it.
The franchise team represented Petro-Canada in a class action that some of its franchisees brought, and it's acted for an international convenience store chain in Western Canada for more than 30 years.
Sports work has included salary arbitrations for NHL teams and financing for professional teams.
The tax team works with people and companies at very different stages, whether that's an individual of high net worth challenging a reassessment of income tax, a family business owner planning succession, or a multinational completing a major acquisition.
The Appellate Law Group handles appeals of administrative and judicial rulings, on either side, and it often works alongside in-house and trial counsel on appeal matters. It's set up to help corporations, industry associations, non-profits and individuals with appeals anywhere in the country.
From the first step of a tendering process to the last, the Construction Litigation team helps clients with compliance issues and with protecting their interests.
Whether a client is buying technology or providing it, members of the technology group negotiate and draft the contracts, such as joint development agreements, licences and service agreements.
The government group's lawyers have acted for departments, agencies and ministers, and for the businesses, industry associations and advocacy groups that work with them. Its services take in municipal law as well as lobbyist registration and Lobbying Act compliance.
The firm has a Restructuring & Insolvency Group, and its franchise team has helped a Canadian franchisor with resale issues when a receiver sold an insolvent franchisee's assets.
The environmental group's work includes Indigenous consultation and resource disputes, and the government group advises on Indigenous governance.
Immigration help shows up across the industry groups: advice on moving senior executives across borders for manufacturers, and athlete and coaching visas for sports clients.
Wheelchair accessible
Free parking
Virtual appointments
By appointmentMiller Thomson aims to give practical, creative and cost-effective advice, and every member of the firm has taken its Service Commitment. That pledge promises clients availability at their convenience with timely replies to their questions, clear communication from advisors who listen, and integrity and transparency at all times.
Miller Thomson's Waterloo Region office sits in the heart of Uptown Waterloo. The area's business improvement association, the Uptown Waterloo BIA, was formed in 1972, and its vision calls for growth that sits well with the city's historic character.
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Family LawThis 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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