About Fish & Associates

Fish & Associates Professional Corporation is a law firm in Thornhill, Ontario, founded in 1973 by Barry M. Fish. The practice focuses on wills, estate planning, and powers of attorney, together with real estate and corporate law. Les Kotzer earned a Bachelor of Laws from the University of Windsor in 1987, was called to the bar in 1989, and joined Fish & Associates that year to concentrate on wills and powers of attorney. Michelle Kotzer, Les Kotzer's daughter, joined the practice in 2015, carrying the wills and estates work into a second generation alongside Barry Fish and Les Kotzer.

Barry Fish and Les Kotzer are co-authors of several books drawn from decades of handling inheritance disputes, including The Wills Lawyers, The Family Fight, The Family War, and Where There's An Inheritance. Les Kotzer received the Queen Elizabeth II Diamond Jubilee Medal for work in wills law and protecting families, and has discussed inheritance planning on CTV National News and in outlets including the Toronto Star and the National Post. The firm now practices from a suite in the Disera Drive retail plaza in Thornhill, and firm materials also describe an office in a converted century home on Yonge Street. It offers free will reviews and free consultations on wills and powers of attorney.

In the community

  • Les Kotzer produced a series of free seminar videos on family inheritance disputes, powers of attorney, and wills, published through the firm's FamilyFight.com companion site.
  • Fish & Associates offers free will reviews and free consultations on wills and powers of attorney.
  • Les Kotzer has been featured in Good Housekeeping magazine and discussed wills and estates in media that has included CTV National News, the Toronto Star, and the National Post.

Good to know

A person using a wheelchairWheelchair accessibleA gold parking sign with a green checkmarkFree parkingA calendar with a checkmark beside a clockBy appointment

Fees & payment

A clipboard with a speech bubble and a no-charge dollar coinFree consultation

This firm’s lawyers at a glance

Called to the bar
1989 · median 37 years in practice 1 of 5 lawyers

Offices 2

31 Disera Drive, Suite 260, Thornhill, ON, Canada, L4J 0A7

7951 Yonge St. Thornhill, Ontario, L3T 2C4

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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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