About David Lam Law Office

David Lam Law Office is a sole practice in Markham, Ontario, run by lawyer David Lam since 1999. Lam holds a J.D. from the University of Ottawa and a B.A.Sc. in Computer Engineering and Management Science from the University of Waterloo, a technical background that shapes the firm's patent and technology work. Before setting up the practice, Lam worked at national law firms in downtown Toronto and around the GTA, and has since appeared before the Ontario Superior Court and the Federal Courts of Canada. Lam is a member of the Law Society of Ontario, an Associate of the Intellectual Property Institute of Canada, and belongs to the Canadian Bar Association, the Ontario Bar Association, and IEEE.

The practice covers business and corporate law, real estate closings, litigation, and intellectual property, including patents, trademarks, copyright, and domain name disputes. Lam is a registered trademark agent in both Canada and the United States, and also works as a notary public and commissioner of oaths in Ontario. A separate part of the practice sets up professional corporations for doctors, dentists, lawyers, accountants, and other regulated professionals. The website carries a full Chinese-language section in both traditional and simplified characters, extending the firm's services to Chinese-speaking clients across the GTA.

Milestones & recognition

  • David Lam has run the practice in Markham since 1999, per the copyright date shown across the firm's site.
  • J.D., University of Ottawa, and B.A.Sc. in Computer Engineering and Management Science, University of Waterloo.
  • Registered Trademark Agent in both Canada and the United States, and a Notary Public and Commissioner of Oaths in Ontario.
  • Associate of the Intellectual Property Institute of Canada; member of the Canadian Bar Association, the Ontario Bar Association, and IEEE.

Good to know

A person using a wheelchairWheelchair accessibleA gold parking sign with a green checkmarkFree parkingA calendar with a checkmark beside a clockBy appointment

The neighbourhood

The office is on Cochrane Drive in Markham, a city the City of Markham itself describes as Canada's high-tech capital, home to more than 1,000 technology and life sciences companies and over 400 Canadian head offices, including names like IBM, AMD, and Huawei. That backdrop lines up with a lawyer whose own degree is in computer engineering and whose intellectual property work covers patents, trademarks, and technology agreements for local businesses.

The real estate side of the practice reaches well past Markham itself. The firm's site advertises residential closings across the GTA, including Toronto, North York, Etobicoke, and Scarborough, and into cottage country as far as Bancroft, Ottawa, and North Bay, backed by a promise to match any written quote from another GTA law firm on a standard closing.

Frequently asked questions

Can David Lam Law Office help me buy a home in Markham or elsewhere in the GTA?
Yes. The firm handles residential real estate closings across the GTA and into cottage country, and will match any written quote from another GTA law firm for a standard closing.
Does the firm handle patents and trademarks?
Yes. David Lam is a registered trademark agent in both Canada and the United States and handles patent, trademark, copyright, and domain name disputes, drawing on a background in computer engineering.
I'm a doctor, dentist, or accountant thinking about incorporating. Can the firm help?
Yes. The firm sets up professional corporations for doctors, dentists, lawyers, accountants, and other regulated professionals, including the paperwork needed for a Certificate of Authorization from the relevant college.
Does David Lam Law Office offer services in Chinese?
Yes. The firm's website includes a full Chinese-language section, in both traditional and simplified characters, for Chinese-speaking clients.
Can the firm notarize a document or take a sworn statement?
Yes. David Lam is a Notary Public and Commissioner of Oaths in Ontario and provides statutory declarations, affidavits, and other notary services.
Where is the office and how do I reach it?
The office is at 625 Cochrane Drive, Suite 102, in Markham. Clients can call (905) 604-8600 or reach the firm through the contact page on its website.

Where to find them

625 Cochrane Drive, Suite 102, Markham, ON L3R 9R9 · 905-604-8600

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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 ↗