John Sime


Contact Details

Email: 1-800-567-4878 ext. 356

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About John Sime

After graduating from Carleton University in 2016, John attended law school at the University of Toronto Faculty of Law. He articled at a full service law firm in Northern Ontario and was called to the Ontario bar in 2020. Since this time, John has devoted himself to Plaintiff side personal injury law, and joined Diamond and Diamond in 2022.

Since 2020, John’s practice has been entirely devoted to helping accident victims receive the compensation that they are entitled to under law. He has successfully argued in front of the Ontario Superior Court of Justice, the License Appeal Tribunal, and the Ontario Social Benefits Tribunal.

Bar Admission

  • Ontario, 2020

Free consults and contingency fee arrangements apply to all personal injury cases only and to select wrongful dismissal cases, but do not apply to other types of commercial and civil litigation.

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Diamond & Diamond Ontario Head Office

255 Consumers Road, 5th Floor, Toronto, Ontario

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Diamond & Diamond Alberta Head Office

4246 97 Street NW, Unit 103, Edmonton, Alberta

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Diamond & Diamond British Columbia Head Office

1727 West Broadway, Suite 400, Vancouver, British Columbia

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168 Bayfield Street


1331 Macleod Trail SE, Suite 645


4246 97 Street NW, Unit 103


1701 Hollis St


256 Pall Mall St, Suite 102


50 Richmond Street E, Unit # 108 B


955 Green Valley Crescent, Unit 315


31 Larch Street, Unit 300


1104 – 13737 96 Ave, Surrey, BC V3V 0C6


255 Consumers Road, 5th Floor


1678 Bloor Street, Suite 302


1727 West Broadway, Suite 400


13158 Tecumseh Rd. E. Unit 3B