About Holmberg Watson

Holmberg Watson is a business and estate law firm with an office on Yorkville Avenue in downtown Toronto. Mihkel Holmberg and Kate Watson founded the firm after working as partners at Bay Street law firms and as in house counsel at public corporations, an experience that showed them the gap between conventional legal advice and the practical realities of running a business. The firm advises clients in industries such as information technology, marketing, financial services, and manufacturing, and describes its work in three stages: starting a business, growing it, and eventually selling it.

Mihkel Holmberg has acted as lead counsel on hundreds of business acquisitions, ranging from owner managed companies to multinational corporations valued at more than $500 million, and was previously general counsel to a publicly listed private equity company with over $700 million in invested capital. Until 2005, Mihkel Holmberg was a partner at a national Canadian law firm with more than 200 lawyers. Kate Watson was previously assistant general counsel to a publicly listed private equity company, working on mergers, acquisitions, and financing, and before that an associate at a full service Canadian law firm. A third lawyer at the firm, Adam Holmberg, holds a law degree from Bond University, an LLM from Osgoode Hall Law School, and finance degrees from McGill University and the University of New South Wales.

Good to know

A person using a wheelchairWheelchair accessible

Fees & payment

A price tag with a dollar signFlat feeA clipboard with a speech bubble and a no-charge dollar coinFree consultation

This firm’s lawyers at a glance

Law schools
Bond University 1 of 3 lawyers

The neighbourhood

Holmberg Watson's office is on Yorkville Avenue, within the area the Bloor-Yorkville Business Improvement Area represents. The BIA runs a calendar of public events on the surrounding streets through the year, including the Toronto Jazz Festival, the Yorkville Exotic Car Show, and Yorkville Murals, an outdoor art installation held each August. That puts the firm in a retail and cultural stretch of downtown Toronto rather than near a courthouse, which fits a practice built around business and estate work rather than litigation.

Frequently asked questions

Can Holmberg Watson help me buy or sell a business in Toronto?
Yes. The firm handles business acquisitions and sales, and Mihkel Holmberg has acted as lead counsel on hundreds of business acquisition transactions, from owner managed companies to larger multinational corporations.
Does Holmberg Watson incorporate new businesses?
Yes. The firm helps sole proprietorships and partnerships incorporate, and advises on structuring private and professional corporations, partnerships, and sole proprietorships, along with the related government filings and minute book requirements.
What is outsourced general counsel, and how is it billed?
It's a service where a business gets ongoing access to Holmberg Watson's lawyers for matters like contracts, shareholder agreements, and mergers and acquisitions, without hiring in house counsel. The firm bills the service on a flat monthly retainer instead of by the hour.
Does Holmberg Watson handle succession planning for a family business?
Yes. The firm advises founders and family business owners on transferring ownership, including distributing shares to family members and structuring the transition, alongside its wills, trusts, and estates work.
Who are the lawyers at Holmberg Watson?
The firm has three lawyers: Mihkel Holmberg and Kate Watson, who founded the firm after working as partners at Bay Street law firms and as in house counsel, and Adam Holmberg, who holds a law degree from Bond University and an LLM from Osgoode Hall Law School.
Where is Holmberg Watson located, and can I book a free consultation?
The office is at 129 Yorkville Avenue in Toronto. The firm offers a complimentary initial consultation, and it also arranges hourly consultations for clients who would rather not commit to a retainer.

Where to find them

129 Yorkville Avenue #200, Toronto, ON M5R 1C4

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