35 lawyers · Established 1979 · Peel Region, Halton Region, City of Toronto and 1 more location
One of 555 law firms listed in Mississauga, and one of 160 handling Business & Corporate Law.
Virtual appointmentsKMB Law is the trading name of Keyser Mason Ball, LLP, a business and family law firm headquartered in Mississauga, Ontario for more than 45 years. Founders John Keyser and Colin Mason, former classmates, along with their colleague John Ball, opened the firm's doors in 1979 with five employees, working from what the firm describes as an outbuilding in the heart of Mississauga. The firm's head office is now in the Mississauga Executive Centre, with additional offices in Burlington, downtown Toronto, and Markham.
In September 2024, Keyser Mason Ball merged with Hoffer Adler LLP, a Toronto firm with a franchise, intellectual property, and commercial and civil litigation practice. The combined firm kept the KMB Law name and gained its downtown Toronto office in the process. Today KMB Law covers a broad range of practice areas, from corporate and commercial law and real estate to family law, franchise law, and intellectual property. It belongs to the Lawpact and XLNC networks of independent law and accounting firms around the world, and its family law group includes Arabic and Greek speaking lawyers.
Business & Corporate Law
Civil Litigation & Dispute Resolution
Construction Law
Employment & Labour Law
Family Law
Intellectual Property
Real Estate Law
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Wheelchair accessible
LGBTQ+ friendly
Free parking
Virtual appointmentsLaw clerks, paralegals and articling students at this firm. They are not licensed lawyers.
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Bankruptcy & InsolvencyThis listing was generated by AI from public sources in August 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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