About Deacon, Spears, Fedson + Montizambert

Deacon, Spears, Fedson + Montizambert, known to clients as DSFM, is a Toronto law firm that has practised condominium law in Ontario for more than 45 years and serves as legal counsel to hundreds of condominium corporations across the province. The firm is based in midtown Toronto at 2300 Yonge Street, with a second office in Oakville. Condominium law is its main focus, but the ten lawyers at the firm also handle litigation and dispute resolution, business law, real estate transactions, and wills and estates.

The firm's name traces to its senior partners. John Deacon advised condominium corporations for more than 40 years before retiring at the end of 2018. Senior litigation partner Michael Spears has been a Law Society certified Specialist in Civil Litigation since 1994. Partner Blaine Fedson argued the Court of Appeal decision in Newport Beach, a case that clarified how condominium corporations in Ontario can pursue construction defect claims against Tarion and developers. The firm also takes on business, real estate, and estates matters for clients outside the condominium sector.

In the community

  • Michael Spears serves as director and legal counsel for the Canadian Orthopedic Foundation and is a member of the refugee committee at Fairlawn Avenue United Church.
  • Several of the firm's lawyers, including Michael Spears and Greg Marley, are professional members of the Canadian Condominium Institute's Toronto and Area Chapter.
  • The firm publishes legal commentary on condominium regulatory issues on its site, including a 2024 article arguing that condominium lien enforcement should be exempt from the Law Society of Ontario's client identity verification requirements.

Good to know

A person using a wheelchairWheelchair accessible

This firm’s lawyers at a glance

Called to the bar
1978–1984 · median 45 years in practice 2 of 10 lawyers
Law schools
University of Western Ontario, Faculty of Law, University of Windsor, Faculty of Law 2 of 10 lawyers

Offices 2

2300 Yonge Street, Suite 1901, Box 2384, Toronto, Ontario M4P 1E4

247 North Service Road West, Suite 304, Oakville, Ontario L6M 3E7

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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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