We believe that collaboration is essential to providing outstanding professional service.


Working together with a shared vision, we are devoted to serving our valued clients. Our collegial workplace fosters greater teamwork, responsiveness, and communication, providing better results for clients. When we’re retained, we will refer you to the TDS lawyer with the ideal level of experience in your field, or alternatively, a legal team will be assembled to work towards a suitable solution. We aim to deliver a full-service firm that makes our team, our clients, and those who aspire to join us feel that they are free to lead.



Our History

With Manitoba roots that run more than 130 years deep, TDS has long been recognized as a leading full-service law firm dedicated to serving clients and delivering high-quality work. The firm’s team of 100 lawyers provides services in over 25 areas of practice to clients locally, nationally, and internationally across every major sector. TDS has long been recognized as a center of excellence in the areas of corporate and commercial law, labour relations, employment law, and civil litigation.


Exclusive Service Offerings

Lex Mundi – Global Reach: The firm is one of the founding members, and is the exclusive member firm in Manitoba for Lex Mundi – the world’s leading network of independent law firms with in-depth experience in 100+ countries worldwide. As part of the Lex Mundi global network, TDS can provide clients with preferred access to more than 21,000 lawyers around the world. Collectively, Lex Mundi firms provide global legal resources with unmatched depth and breadth. Collaborating with other Lex Mundi firms, TDS is able to seamlessly handle clients’ most challenging cross-border transactions and disputes. 




The firm has been recognized by LEXPERT® on numerous occasions as being the leading corporate law firm in Manitoba. TDS has also been ranked and recommended by Chambers Global, Benchmark Litigation and recognized as one of the top regional firms in the prairies by Canadian Lawyer Magazine. In addition, several of the firm’s lawyers have been recognized by Best Lawyers® in Canada and LEXPERT® as leaders in their respective practice areas.


Community Minded

We are engaged in the communities in which we live and work. Across all of our Manitoba offices, TDS gives back and is mindful of its responsibility to make a positive contribution to our local communities. Each year TDS contributes over $250,000, supporting more than 100 worthwhile community initiatives across Manitoba that includes the arts, environment, education, the advancement of medical care, local economic development, children’s causes and providing access to legal services for disadvantaged community members. In addition, TDS lawyers contribute hundreds of hours of their time providing pro bono legal services.

A recent and notable economic development example was the firm’s decision to become the first tenant and founding partner in True North Square, playing a role in the continued revitalization of downtown Winnipeg.

In the Community

The lawyers and staff at Thompson Dorfman Sweatman LLP recognize the importance of supporting the community in which they work, live and play. Each year TDS contributes over $250,000 to worthwhile community initiatives that support the Arts, the Environment, the advancement of medical care, and the advancement of technology.
Here are some of the causes we support:

Education & the Arts
Health & the Environment
Entrepreneurship & Community

Additional Services

Information Sharing Services

Sharing information in the cloud has never been easier. Recently, there has been a growing concern as to the security of information stored on public cloud services. TDS Law utilizes a number of services to facilitate the sharing of content.


The file-sharing services that TDS employs are secure data synchronization and sharing platforms utilizing bank-level encryption technology. They work like public cloud services, making shared documents available on your desktop PC or Mac, through your smart phone, or through any web browser.


Benefits of Secure information Sharing Services


Security – The content stored in our file-sharing services is encrypted both while in transit and while at rest in the cloud. That means that all interactions that you have with data through those services, whether uploading or downloading files, or simply accessing them through the secure online portal, uses 256-bit SSL encryption. This ensures that TDS Law data is secure and prevents unauthorized physical access to our shared data, while providing users the flexibility to work with their documents as needed, using desktop, laptops, tablets, and mobile devices.


Share Large Files – Email isn’t designed to share large files, and using an FTP server to share documents is not practical either. There is no practical file size limitation on our private cloud service. Whether you are sharing a simple Word document, or an HD video of a work site, we can share it – securely.


Collaboration Simplified – Sharing documents by email creates an opportunity for multiple versions of a document to circulate, causing inconsistencies and missed updates. With our private cloud service, multiple people can work on the same document. Changes are saved automatically and updated to all authorized users.


Versioning – Sometimes updates need to be undone. With our file-sharing services, files are tracked, allowing authorized users access to multiple versions of a file.

Video Conferencing

TDS is committed to providing our valued clients with new services and to being progressive when it comes to adopting new technology.


Many of our clients are located outside of Winnipeg. Video Conferencing services allow our clients and lawyers to meet face-to-face without having to leave their office, reducing time away from the office and away from family. TDS offers robust solutions for video-conferencing to meet the needs of our clients and lawyers. High-Definition video cameras are available for virtual meetings, with traffic capably handled by our state-of-the art network infrastructure. Of course, video conferencing is not meant to replace all in-person meetings. We understand there are times when meeting face-to-face is needed, but in situations where in-person meetings are not essential, this solution has proven to be efficient, cost-effective and convenient.


Getting started on video conferencing with TDS is easy. If your organization has an existing video conferencing system, we should be able to connect without a problem. We support all of the current video-conferencing platforms when virtual meetings are requested. We ask that the first time a video conference is requested with us, we do a test call in advance of the actual meeting to ensure there are no technology issues between the systems.


Video Conferencing Support
If you have any questions regarding video conferencing with TDS, please reach out to the TDS Systems Operations group at 204-934-2322. Our support staff is available Monday – Friday 8:00 am to 5:00 pm GMT -0600.

Notable Recognition

Notable Recognition

Chambers and Partners have been researching the legal markets of over 180 countries, identifying the leading lawyers and law firms worldwide through interviews with thousands of lawyers and their clients. Chambers and Partners reputation is based on the independence and objectivity of their research.


TDS has been ranked in and recommended by Chambers Canada 2020 and 2021 for the categories Corporate/Commercial, Employment & Labour, and Litigation: General Commercial.


In addition to the firm recognition, John Stefaniuk has been ranked and recommended for Environmental Law in Canada in both Chambers Global and Chambers Canada 2021. Bruce Taylor and Greg Tallon have been ranked and recommended for Corporate/Commercial Law in Manitoba. Ross McFadyen has been ranked and recommended for Litigation: General Commercial Law in Manitoba.


The Canadian Legal Lexpert Directory and the Lexpert®/American Lawyer Guide to the Leading 500 Lawyers in Canada are two of the most comprehensive guides to legal talent in Canada. These publications identify the most frequently recommended lawyers across Canada in a wide range of practice areas. Both publications have become a resource of choice for in-house counsel and law firms in need of Canadian legal expertise.
Both the firm and individual lawyers have been recognized numerous times over many years by Lexpert®. TDS has been recognized by Lexpert® numerous times as being one the leading corporate law firms, and one of the leading litigation firms in Manitoba. On several occasions the firm has been placed at the centre of the “Bulls-Eye” ranking of corporate/commercial law practices in Winnipeg.
Over the years, several TDS lawyers have been named to the Lexpert®/American Lawyer Guide to the Leading 500 Lawyers in Canada and listed in the Canadian Legal Lexpert Directory as Leading Lawyers in their respective practice areas. Since 2007 seven TDS Partners have been named by Lexpert® as among the Top 40 Leading Lawyers in Canada, and most recently TDS lawyer Drew Mitchell was named a Leading Lawyer in the Lexpert® Special Edition: Technology 2021 and Bailey Harris was named a  Lexpert® Rising Star in 2020. 

Best Lawyers®

Best Lawyers is based on an exhaustive annual peer-review survey. Because of the rigorous and transparent methodology used by Best Lawyers, and because lawyers are not required or allowed to pay a fee to be listed, inclusion in Best Lawyers is considered a singular honour.
For several years in a row, numerous TDS lawyers have been listed as among The Best Lawyers in Canada by Best Lawyers®. In 2021 twenty four lawyers were listed across nineteen areas of practice, and TDS Partners Adrian Frost, Sacha Paul and Gregory Tallon were recognized nationally by Best Lawyers® as 2022 Winnipeg Lawyers of the Year.

Canadian Lawyer Magazine

Canadian Lawyer delivers reporting and analysis of the legal landscape from coast to coast. Focused on both the practice and the profession, Canadian Lawyer delivers award-winning editorial content that informs, inspires and occasionally inflames the lawyers, corporate counsel, judges, law professors, and students-at-law.
Every few years Canadian Lawyer Magazine returns to the Prairies for their regional law firm rankings. TDS Law has been recognized on several occasions by Canadian Lawyer Magazine as one of the Top 10 Prairie Regional Firms, most recently in 2021, 2019, 2017, 2013 and in 2011.  In addition, TDS lawyer and managing partner Keith LaBossiere was named one of Canadian Lawyer’s Top 25 most influential lawyers in Canada in 2020. 
The following quotes were obtained based on research and interviews conducted by Canadian Lawyer:
“Prompt and efficient” service, as well as the ability to “find creative alternatives” make TDS the go-to firm of one in-house counsel.
“Great local contacts, top professionals,” added another corporate counsel based in Toronto.
One in-house counsel praised TDS for possessing a “great understanding of law, but also of the political climate,” adding the firm “is another pair of ‘eyes’ in the province for our company.”