About Niebler Law

Niebler Law is a sole practice run by Dieter Niebler, with a main office at 393 University Avenue in downtown Toronto and a second office on Hurontario Street in Mississauga. Niebler was called to the bar in Ontario in 1974 as a Barrister, Solicitor and Notary, after earning a law degree and a Bachelor of Arts in Philosophy, both from the University of Toronto. The practice has operated under the Niebler Law name since 2001, following two earlier partnerships that Niebler co-founded going back to 1980.

The firm's work centres on corporate and commercial law, real estate, wills and estate planning and administration, and family, commercial and estate litigation handled together with associate counsel. It also acts for renewable energy clients, including alternative energy producers working in wind and solar power, and has helped foreign renewable energy suppliers set up Canadian operations. Niebler is fluent in English and German and the firm handles cross-jurisdictional matters through its contacts with European lawyers and notaries, with particular experience in files touching Germany, Austria and Switzerland.

Milestones & recognition

  • Called to the bar in Ontario in 1974 as a Barrister, Solicitor and Notary.
  • Practised as a sole practitioner under the Niebler Law Office name from 1974 to 1980, then co-founded Rainer, Niebler from 1980 to 1988.
  • Was a founding member of Niebler, Liebeck, Singer from 1988 to 2001 before returning to a sole practice under the Niebler Law Office name, where the firm has operated since.

In the community

  • The firm is on the recommended lawyer's list of both the Canadian Embassy in Berlin and the German Consulate in Toronto.
  • Dieter Niebler was formerly a member of the German-Canadian Chamber of Commerce and the Hong Kong Trade Association.

Good to know

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

Offices 2

393 University Avenue, Suite 2000, Toronto, Ontario M5G 1E6, Canada

1462 Hurontario Street, Mississauga, Ontario L5G 3H4, Canada

The neighbourhood

The firm's Toronto office is at 393 University Avenue, Suite 2000. The same address is also home to part of the Ontario Superior Court of Justice's civil operations, including the Associate Judges Office, according to the court's own location page. That's a useful thing to have in the building for a practice that includes commercial and estate litigation alongside its real estate and corporate work.

The Mississauga office sits on Hurontario Street near its southern end, close to the historic Port Credit waterfront and the low density Mineola area, before the street becomes one of the busiest north-south corridors running through Mississauga and up into Brampton. It gives the firm a second point of contact on the west side of the Toronto area, a short distance from the Toronto office.

Frequently asked questions

Can Niebler Law help me buy or sell a home in Toronto or Mississauga?
Yes. The firm handles the purchase and sale of residential and commercial properties, along with financing, leasing, power of sale and foreclosure matters.
I have an inheritance or estate matter in Germany, Austria or Switzerland. Can Niebler Law help?
Yes. The firm handles cross-jurisdictional legal issues through its contacts with European lawyers and notaries and has particular experience with matters touching Germany, Austria and Switzerland, including estate administration coordinated with local and international tax advisors.
Does Niebler Law offer service in German?
Yes. Dieter Niebler is fluent in English and German, and the firm is on the recommended lawyer's list of both the Canadian Embassy in Berlin and the German Consulate in Toronto.
I'm starting a business. Can Niebler Law help me incorporate it or draft a shareholders agreement?
Yes. The firm's corporate and commercial work covers creating a new corporation, buying or selling an existing one, and drafting shareholders agreements, among other business law matters.
Does the firm work with renewable energy companies?
Yes. Niebler Law has acted for alternative energy producers and proponents in wind and solar power, and has assisted foreign renewable energy suppliers with setting up Canadian operations.
Can Niebler Law prepare my will and power of attorney?
Yes. The firm prepares wills and powers of attorney and provides estate planning and administration services, working with local and international tax advisors where needed.

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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 ↗