Colson Winterstein LLP
5 lawyers · Established 2023 · City of Toronto
One of 2,345 law firms listed in Toronto, and one of 478 handling Employment & Labour Law.
About Colson Winterstein LLP
Colson Winterstein LLP is a small Toronto firm founded in 2023 by lawyers from the Colson Group at the firm formerly known as Teplitsky, Colson LLP. Founding partners Robert Colson and Michael Winterstein lead a team of four lawyers built around two practice areas: employment law and litigation, and corporate and commercial litigation. Employment law is what the firm calls the centrepiece of its practice, acting for both employees and employers, with particular attention to senior and executive level disputes such as wrongful and constructive dismissal, human rights complaints, and restrictive covenants.
On the commercial side, the firm takes on shareholder and partnership disputes, contract claims, and applications for injunctive relief, including Mareva injunctions and Anton Piller orders, and it regularly appears on Toronto's Commercial List. Robert Colson was counsel in Schumacher v. Toronto Dominion Bank, an early Ontario decision on constructive dismissal damages, and the firm's lawyers say they've acted as counsel in more than 4,600 employment files over the past 25 years. The firm is currently based on Bond Street in downtown Toronto and plans to move a short distance to 25 Adelaide Street East in September 2026.
Practice areas
Milestones & recognition
- Founded in 2023 by the employment lawyers in the Colson Group at the firm formerly known as Teplitsky, Colson LLP.
- Robert Colson and Michael Winterstein are both recognized in the 2026 edition of The Best Lawyers in Canada, Colson for corporate and commercial litigation and labour and employment law, and Winterstein for labour and employment law.
- Robert Colson was counsel in Schumacher v. Toronto Dominion Bank, decided about 25 years ago, an early Ontario ruling on constructive dismissal damages that survived the bank's appeal.
- Robert Colson has taught at York University, the Ontario Bar Admission Course, and Osgoode Hall Law School's Intensive Trial Advocacy Workshop, and has acted as an arbitrator and mediator for the Ontario government on teacher and school board disputes.
In the community
- Founding partner Michael Winterstein provides pro bono employment advice to patients living with cancer through Wellspring's Money Matters Program.
- One of the firm's lawyers previously worked at Infojustice Manitoba, a legal information centre serving French speakers, and is a member of l'Association des juristes d'expression francaise de l'Ontario.
Good to know
Wheelchair accessible
By appointmentLawyers 5
Eraj Rehman
Lawyer
Employment & Labour Law
Malcolm Woodside
Lawyer
Employment & Labour Law
Marina Djurdjevic
Lawyer
Employment & Labour Law
Michael Winterstein
Founding Partner
Employment & Labour LawCivil Litigation & Dispute Resolution
Robert Colson
Founding Partner
Employment & Labour LawCivil Litigation & Dispute Resolution
This firm’s lawyers at a glance
- Law schools
- Queen's University Faculty of Law, University of Manitoba, University of Western Ontario 3 of 5 lawyers
- Languages on the roster
- French
Who handles what
The neighbourhood
Colson Winterstein's current office sits on Bond Street, a short downtown Toronto street that runs from Gould Street to Queen Street East through what a heritage building database lists as the Downtown Yonge East area. The street is shared with Toronto Metropolitan University buildings, including the former Toronto Normal School site, and with St. Michael's Cathedral Basilica, putting a small litigation firm in the middle of a university and church block rather than a typical office tower row.
In September 2026 the firm plans to relocate a short distance to 25 Adelaide Street East, a 1927 office building known as Victoria Tower that sits in Toronto's Financial District. The move keeps the firm within the same stretch of downtown Toronto, closer to the commercial and banking activity that shapes much of its shareholder and employer side work.
Frequently asked questions
- I'm a senior executive who was just let go, can Colson Winterstein help?
- Yes. The firm says employment law is the centrepiece of its practice and it focuses on advising senior and executive employees at every stage of employment, including after termination, to help them receive their full legal entitlements.
- Does Colson Winterstein only act for employees, or does it also represent employers?
- Both. The firm represents employees in matters like wrongful and constructive dismissal, and separately advises employers and management on complying with workplace statutes and regulations and on handling real time workplace issues.
- My employer says I breached a non-compete or took confidential information, can Colson Winterstein defend me?
- The firm says it defends employees accused of wrongdoing such as taking confidential information or unlawful competition, alongside its work on restrictive covenant disputes.
- Does the firm handle disputes between business partners or shareholders?
- Yes. Colson Winterstein takes on commercial litigation mandates including disputes between shareholders over control of a business, partnership disputes, contract claims, and applications for injunctive relief, and it regularly appears on Toronto's Commercial List.
- How big is Colson Winterstein and where is it located?
- The firm is a small Toronto firm with four lawyers. It is currently based on Bond Street in downtown Toronto and plans to move to 25 Adelaide Street East in September 2026.
- When was Colson Winterstein founded?
- It was founded in 2023 by employment lawyers from the Colson Group at the firm formerly known as Teplitsky, Colson LLP.
Where to find them
Suite 200, 70 Bond Street, Toronto, Ontario, Canada M5B 1X3
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Business & Corporate LawAdministrative & Regulatory LawEmployment & Labour LawListing compiled from the firm’s public website in August 2026. Verify licence status in the Law Society of Ontario directory ↗