About Crupi Law Professional Corporation

Crupi Law Professional Corporation is a small law firm headquartered in Concord, in the city of Vaughan, with a satellite office in Unionville, Markham, available by appointment. Cosimo A. Crupi founded the firm and remains its principal. Crupi earned a Bachelor of Arts in political and social sciences from the University of Toronto's St. Michael's College in 1977, a law degree from the University of Windsor in 1981, and was called to the Ontario bar in 1983. The firm's practice centres on commercial real estate and business law, with wills, powers of attorney, and estate administration rounding it out. It acts for landlords and tenants across Canada on office, retail, and industrial leases, and it represents clients ranging from small family-owned businesses to companies with a national presence on start-ups, mergers, corporate reorganizations, and shareholder agreements.

In a profile in My Business Magazine, Crupi said the firm chose a smaller path early on rather than a big-firm career, and described an open-door policy so clients feel comfortable reaching the firm by phone, email, or in person. The firm and its founder picked up local recognition over the years, winning "Best Legal Services Firm" and best lawyer in Markham honours in the Markham Economist & Sun Readers' Choice Awards for 2015 and 2016. Crupi practises in English and Italian.

Milestones & recognition

  • Cosimo A. Crupi was called to the bar by the Law Society of Upper Canada in 1983, after a Doctor of Juris from the University of Windsor (1981) and a Bachelor of Arts from the University of Toronto's St. Michael's College (1977).
  • Crupi Law won "Best Legal Services Firm" in the Markham Economist & Sun Readers' Choice Awards for 2015 and 2016, with Cosimo Crupi named best lawyer in Markham both years and nominated again in 2017.
  • Crupi is listed as a member of the Law Society of Upper Canada, the Canadian Bar Association, the Ontario Bar Association, and the Markham Board of Trade.

In the community

  • The firm's own site says it has been an active participant in the community for over 25 years, contributing annually to Hockey Helps the Homeless (Markham Chapter), the Markham Stouffville Hospital Foundation, Hockey With Heart through the Unionville Men's Hockey League, and Catholic Missions in Canada.
  • Crupi Law sponsors the Unionville Festival, the Thursday Nights at the Bandstand summer concert series on Main Street Unionville, and the Unionville Men's and Ladies' Slo-Pitch Leagues.
  • Cosimo Crupi serves as president and director of the Bel Canto Foundation and the Unionville Cycling Club.

Good to know

A person using a wheelchairWheelchair accessibleA laptop showing a video callVirtual appointmentsA calendar with a checkmark beside a clockBy appointment

Offices 2

9100 Jane Street, Suite 208, Building A, Concord, Ontario, L4K 0A4

145 Main St Unionville, Unionville, ON L3R 2G7

The neighbourhood

Crupi Law's head office is a suite in a multi-tenant office building at 9100 Jane Street in Concord, part of the light industrial and commercial belt that fills much of southeastern Vaughan. All of the firm's correspondence and deliveries go to this address; it's the administrative base of the practice.

The firm's second office sits on Main Street in Unionville, a street in Markham founded in 1794 that has what a description of the area calls a Victorian village feel. The road hosts the annual Unionville Festival and live summer concerts at its historic bandstand, both of which Crupi Law sponsors, a genuine tie between the street where the firm meets clients by appointment and where its own community giving is concentrated.

Frequently asked questions

Can Crupi Law help me buy or lease commercial space in Vaughan or Markham?
Yes. The firm's commercial real estate practice covers acquisitions, financing, and lease negotiation and drafting for landlords and tenants in multi-tenant, mixed-use, retail, and industrial buildings.
I'm starting a business in the GTA, can Crupi Law incorporate it?
Yes. Crupi Law advises on business start-ups and acquisitions, partnership and shareholder agreements, and corporate reorganizations, for clients ranging from small family-owned businesses to companies with a national presence.
Can Crupi Law prepare my will and power of attorney?
Yes. The firm prepares basic and complex wills along with personal care and general power of attorney documents, and it guides executors and trustees through estate administration.
A family member died without a will, can Crupi Law help settle the estate?
Yes. Crupi Law handles applications for a certificate of appointment of estate trustee, with or without a will, and advises on how an estate is managed and distributed.
Where is Crupi Law located, and can I meet at the Markham office?
The head office is at 9100 Jane Street in Concord, Vaughan, where correspondence and deliveries go. There's also a satellite office on Main Street in Unionville, Markham, available by appointment.
How long has Cosimo Crupi been practising law?
Crupi was called to the Ontario bar in 1983 after a law degree from the University of Windsor, and has focused since on commercial real estate and business law.

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Listing compiled from the firm’s public website in September 2026. Verify licence status in the Law Society of Ontario directory ↗