About The Harris Gwynne Law Firm

The Harris Gwynne Law Firm is a two lawyer firm based in Markham, Ontario, formed in October 2010 when Sally Harris and Michael Gwynne joined together in association. The firm's core focus is condominium law, acting for condominium corporations and their boards of directors, and it also handles corporate and commercial law, securities law, tax law, wills and estates, elder law, and real estate transactions for clients across York Region and the Golden Horseshoe.

Sally Harris earned an LL.B. from Osgoode Hall Law School in 1993 and was called to the bar in 1995. After articling with Pacey, Deacon, Spears & Fedson, Harris worked as an associate at Deacon Spears Fedson & Montizambert, then opened a York Region practice in 2006 before partnering with Gwynne in 2010, and is an Associate Member of the Association of Condominium Managers of Ontario (ACMO).

Michael Gwynne earned an LL.B. from Queen's University Law School in 2004, an LL.M. in tax from Osgoode Hall Law School, an MBA from Queen's University, and CPA and CGA designations, and was called to the bar in 2005. Gwynne's earlier background includes public accounting and the Ontario Securities Commission, then work as an associate at Deacon Spears Fedson & Montizambert and at Miller Thomson LLP, and now includes lecturing the Advanced Condominium Course for Directors and Managers at the Condominium Institute.

Milestones & recognition

  • The Harris Gwynne Law Firm was formed in October 2010 when Sally Harris and Michael Gwynne joined together in association.
  • Sally Harris was called to the Bar of Ontario in 1995, after articling with Pacey, Deacon, Spears & Fedson, and opened a York Region practice in 2006 before joining with Gwynne.
  • Michael Gwynne was called to the Bar of Ontario in 2005 and, while at Queen's University, received the Stikeman Elliott/Carswell National Tax Award and the David Sabbath Prize in Taxation.

In the community

  • Michael Gwynne lectures the Advanced Condominium Course for Directors and Managers offered through the Condominium Institute and has written for CCI's CondoVoices Magazine.
  • Michael Gwynne is active with the Communications Committee of the Association of Condominium Managers of Ontario (ACMO).
  • Sally Harris is an Associate Member of the Association of Condominium Managers of Ontario (ACMO).

Good to know

A person using a wheelchairWheelchair accessibleA calendar with a checkmark beside a clockBy appointment

This firm’s lawyers at a glance

Called to the bar
1995–2005 · median 26 years in practice 2 of 2 lawyers
Law schools
Osgoode Hall Law School, Queen's University 2 of 2 lawyers

The neighbourhood

Harris Gwynne's office is at 9275 Markham Road, Suite 207, in Markham, Ontario.

Downtown Markham, a mixed use project that has been described as the largest planned mixed use development in Canada, is built around the kind of high rise condominium construction that keeps generating new corporations, boards, and reciprocal agreements for a condo lawyer to work with.

Frequently asked questions

Does Harris Gwynne represent condominium corporations in Markham and York Region?
Harris Gwynne represents condominium corporations and their boards of directors in Markham and across York Region, preparing corporate documents like bylaws and rules and appearing at board meetings.
Our condo board has a dispute with an owner over unpaid common expenses. Can the firm help?
Harris Gwynne acts for condominium boards in disputes with unit owners, including collection of unpaid common expenses and the mediation or arbitration of cost sharing and other disagreements.
Can Harris Gwynne handle the purchase or sale of a home or condo unit in the Golden Horseshoe?
Harris Gwynne handles real estate purchase and sale transactions for individual clients across York Region and the Golden Horseshoe.
I need a will and powers of attorney prepared. Can the firm do that?
Harris Gwynne prepares wills and other estate planning documents for individual clients, and the firm also has experience in elder law matters.
I'm starting a corporation near Markham. Can the firm help with incorporation?
Harris Gwynne advises corporations, including not-for-profit corporations, on incorporation and other corporate and commercial matters.
Does Harris Gwynne handle tax law matters?
Harris Gwynne handles tax law matters, drawing on founding lawyer Michael Gwynne's LL.M. in tax from Osgoode Hall Law School and a background in public accounting and at the Ontario Securities Commission.

Where to find them

9275 Markham Road, Suite 207, Markham, Ontario, Canada, L6E 1A3 · 905-640-7521

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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 ↗