About Sun & Partners Professional Corporation, Barristers and Solicitors

Sun & Partners Professional Corporation, Barristers and Solicitors is a Toronto business law firm founded in 1983 by Jimmy Sun. Sun studied Computer Science at York University, graduating in 1977, then earned an LL.B. from Osgoode Hall Law School in 1981 and was called to the Ontario Bar in 1983, the same year the firm opened. What began as a general practice for individuals, families, and businesses has grown into a firm organized around business and corporate law, litigation, real estate, and a dedicated China trade practice, alongside personal services such as wills, estates, family law, and select criminal and regulatory matters.

The firm is a member of the Canada China Business Council and advises Canadian businesses expanding into Asia as well as Asian companies establishing operations in Canada, drawing on relationships built over four decades. Its business and real estate lawyers regularly act on financing transactions in the ten million to twenty million dollar range for banks and other lenders. Counsel Derek Lee, called to the Bar of Ontario in 1975, practised corporate and real estate law before spending 23 years as a Member of Parliament, and later returned to legal practice at the firm. Sun & Partners marked its 35th anniversary in 2018 and has supported SickKids Foundation through the annual Glitter fundraising event.

In the community

  • Sun & Partners has taken part in the annual Glitter fundraising event supporting SickKids Foundation, as well as other cultural and charitable initiatives.
  • The firm is a member of the Canada China Business Council, a nonprofit organization that supports trade and investment between Canada and China.
  • Counsel Derek Lee was a voting member of the Rouge Park Alliance for 15 years, supporting the protection of federal lands within the Oak Ridges Moraine and Rouge Valley Park corridor.
  • The firm publishes a regular legal insights blog covering real estate, condominium, family, employment, landlord and tenant, and corporate topics for the public.

Good to know

A person using a wheelchairWheelchair accessibleA laptop showing a video callVirtual appointmentsAn office interior with a desk and chairsIn-person services

This firm’s lawyers at a glance

Languages on the roster
Cantonese, Mandarin, Shanghainese

Where to find them

3650 Victoria Park Avenue, Suite 301, Toronto, ON · 416-490-0088

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This 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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