About Simeson Law LLP

Simeson Law LLP is a litigation firm in downtown Oshawa, Ontario, with an office at 100 Bond Street East. The firm now goes by Simeson Law but was previously known as Kitchen Simeson Belliveau LLP, a name that still shows up in the kslawfirm.ca domain and the firm's Instagram and LinkedIn accounts. It handles personal injury, criminal defence, employment, and family law matters, and it's been operating in Oshawa for about 40 years by its own account.

Partner Alastair H. Simeson was called to the Ontario bar in 1984 after earning degrees from the University of Western Ontario, the University of Waterloo, and the law school at McGill University. Simeson focuses on personal injury litigation, long term disability claims, and life insurance disputes, and previously served as President of the Oshawa Chamber of Commerce and Chairman of the Canada Pension Plan Appeals Tribunal.

Associate Sean M. Simeson spent almost a decade practicing personal injury and workers' compensation law in Colorado, including civil rights litigation against police departments, before returning to Ontario and taking on criminal defence work at the firm too. Partner Melissa Belliveau leads the firm's family law and collaborative family law practice and holds a Certificate in Family Mediation from York University.

In the community

  • Partner Alastair Simeson serves on the boards of community organizations in Oshawa and has coached minor hockey and minor lacrosse.

Good to know

A person using a wheelchairAccessible restroomA calendar with a checkmark beside a clockBy appointment

Fees & payment

A shield with gold coins, a dollar sign and a checkmark sealContingencyA clipboard with a speech bubble and a no-charge dollar coinFree consultation

Where to find them

100 Bond St. East, Unit 5, Oshawa, ON L1G 0B7 · 905-579-5302

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This listing was generated by AI from public sources in September 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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