About Martin Rosenbaum Law

Martin Z. Rosenbaum Law Professional Corporation is a sole-practitioner firm in Toronto, working out of the Richmond-Adelaide Centre on Adelaide Street West in the financial district. Martin Rosenbaum practices corporate and commercial law, litigation, and human resource law, appearing before the Ontario Superior Court of Justice, the Ontario Court of Appeal, and the Ontario and Canadian Labour Relations Boards. Clients include privately held companies, foreign corporations, and not-for-profit organizations, and the firm's work covers mergers and acquisitions, shareholder disputes, financings, employment matters, and cross-border issues between Canada and the United States.

Rosenbaum earned a B.Com. in 1982 and a B.C.L. and LL.B. in 1986, all from McGill University, and was called to the Ontario Bar in 1988. The practice's reach extends beyond corporate work into e-business and information technology law, drafting software development and licensing agreements for technology companies, along with real estate and construction law. Rosenbaum also taught in the Law Society of Upper Canada's Bar Admission Course from 1991 to 2001, served on the Ontario Superior Court's Commercial List User's Committee from 2003 to 2010, and chaired the Ontario Chapter of the American Chamber of Commerce in Canada from 2008 to 2011.

Milestones & recognition

  • Martin Rosenbaum earned a B.Com. in 1982 and a B.C.L. and LL.B. in 1986, all from McGill University.
  • Rosenbaum was called to the Ontario Bar in 1988.
  • Rosenbaum completed a negotiation workshop at Harvard Law School in 2005.

In the community

  • Rosenbaum taught in the Law Society of Upper Canada's Bar Admission Course from 1991 to 2001.
  • Rosenbaum served on the Ontario Superior Court's Commercial List User's Committee from 2003 to 2010.
  • Rosenbaum was Chairman of the Ontario Chapter of the American Chamber of Commerce in Canada from 2008 to 2011.

Good to know

A person using a wheelchairWheelchair accessible

The neighbourhood

The firm works out of the Richmond-Adelaide Centre at 120 Adelaide Street West, a tower built in 1966 in the middle of Toronto's financial district. The complex sits among a cluster of downtown office buildings and connects into the city's underground PATH system. It's a fitting address for a practice built around mergers, financings, and cross-border corporate work rather than a walk-in neighbourhood office.

Frequently asked questions

What areas of law does Martin Z. Rosenbaum Law handle?
The firm covers business and corporate law, e-business and information technology law, HR and employment law, litigation, real estate law, and construction law, along with negotiation and dispute resolution services.
I'm building a software company and need a licensing agreement, can the firm help?
Yes. The firm's e-business and information technology practice drafts software development agreements, software licensing agreements, and technology acquisition agreements for companies across the software lifecycle.
I think I was wrongfully dismissed, can the firm help?
Yes. Wrongful dismissal is one of the services listed under the firm's HR and employment law practice, alongside employment contracts and human rights matters.
Can the firm help with a shareholder dispute?
Yes. Shareholder disputes and corporate governance work fall under the firm's corporate law practice, and related disagreements can also be handled through its litigation practice.
How long has Martin Rosenbaum been practicing law?
Rosenbaum was called to the Ontario Bar in 1988 and the firm describes over 30 years of experience in corporate, commercial, and cross-border law.
Where is the firm located?
The office is at 120 Adelaide Street West, Suite 2500, in the Richmond-Adelaide Centre in Toronto's financial district. The firm can be reached at 416-364-1919.

Where to find them

Richmond-Adelaide Centre, 120 Adelaide Street West, Suite 2500, Toronto, Ontario M5H 1T1

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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 ↗