Keith David LaBossiere, K.C.

Lawyer

he/him

Keith serves as the CEO and Managing Partner of Thompson Dorfman Sweatman LLP. While doing so, he continues to practice in the areas of labour and employment law.

(204) 934-2587
kdl@tdslaw.com

Winnipeg
(204) 934-0587

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Profile

Keith serves as the CEO and Managing Partner of Thompson Dorfman Sweatman LLP. While doing so, he continues to practice in the areas of labour and employment law. He has significant experience in the area of police employment law and public sector labour relations.

Keith provides advice and advocacy to his clients, both employer and employee, on a variety of labour and employment matters including matters of discipline, termination and interpretation of collective agreements and is frequently involved in negotiating and/or litigating such matters. Keith also has experience in appearing as counsel on these matters in Labour Board proceedings, both provincial and federal, collective agreement grievance arbitrations and the civil courts. In addition to his labour and employment law practice, Keith also practices civil litigation.

Additional Information

Bachelor of Laws, University of Manitoba, 1993

Manitoba, 1994

Recognized by Best Lawyers™ Labour and Employment Law “Lawyer of the Year” award in Winnipeg for 2021, 2023 and 2025

Included in the 2025 edition of Best Lawyers™ in Canada in the fields of Labour and Employment Law (since 2008)

Thomson Reuters Stand-Out Lawyer 2024

Recognized in the 2024 Canadian Legal Lexpert® Directory in Labour Relations

Queen’s Counsel (Q.C.) Designation by the Manitoba Government, 2022

Canadian Lawyer’s Top 25 Most Influential Lawyer 2020-2021 and the only Manitoba-based lawyer to receive Canadian’s Most Influential Lawyer 2020-2021

Named one of Canada’s 40 leading lawyers under 40 by Lexpert Magazine

Recipient of the A. Montague Israels Q.C. prize from the Law Society of Manitoba

The only Manitoba lawyer named to Lexpert Magazine’s “15 Canadian Litigation Lawyers to Watch” list in 2008

Recognized as a “Litigation Star” in multiple recent editions of Benchmark Canada, the guide to Canada’s leading litigation firms and attorneys

Keith has served and continues to serve on several local non-profit Boards and continues to donate his time and energy to a variety of charitable and community organizations.

Throughout Law School, Keith was actively involved in mock trials, winning the Solomon Greenberg Moot Court competition as well as the Western Canada Moot Court competition. Keith remains actively involved in the University of Manitoba’s Advocacy program, assisting in teaching the Advocacy Course.

Keith has been a frequent guest lecturer at a number of different education programs in the area of labour law, including the Isaac Pitblado Lectures, The Centre for Labour-Management Development and Lorman Education Services.

Manitoba

I truly don't know if we're able to do our job and I do my job more specifically in this role without Keith and his crew there at the office.

Read more. Cory Wiles
President
Winnipeg Police Association