Does Dutton Brock represent insurance companies or individual claimants?

Dutton Brock primarily represents insurers and self-insured corporations, defending claims rather than acting for the individuals bringing them.

Does Dutton Brock offer mediation or arbitration for insurance disputes?

Yes. Several lawyers at the firm act as mediators and arbitrators in insurance matters.

How long has Dutton Brock been practising insurance law in Toronto?

The firm was founded in March 1982 by W. Graham Dutton and marked its 40th anniversary in 2022.

Where is Dutton Brock's office located?

The firm's office is at 150 York Street, Suite 800, in downtown Toronto, in the Adelaide Place complex in the city's financial district.

Does Dutton Brock have offices outside Toronto?

No. The firm works from a single Toronto office and serves insurer and corporate clients across Ontario from that location.

Dutton Brock LLP | LawOnline Directory

About Dutton Brock LLP

Dutton Brock LLP is a Toronto insurance litigation firm founded in March 1982 by founding partner W. Graham Dutton, who was called to the Bar in 1962, appointed Queen's Counsel in 1976, and certified as a Specialist in Civil Litigation by the Law Society of Upper Canada at the inception of that designation. The firm marked its 40th anniversary in 2022 and today works from a single Toronto office, most of the firm's history spent on the defence side of the insurance industry rather than representing individual claimants.

The practice covers a wide range of insurance related litigation, including coverage disputes, statutory accident benefits, motor vehicle and product liability claims, professional liability, construction and municipal litigation, class actions, and appeals, and several lawyers at the firm also act as mediators and arbitrators in insurance matters. Lexpert has ranked Dutton Brock as the most frequently recommended commercial insurance litigation firm in Canada, and the Globe and Mail named it to its Best Law Firms list in 2022, ranking it highly in the insurance category. The firm also describes a tradition of promoting from within, with many of its current partners having started there as articling students.

Practice areas

Insurance Law

Personal Injury

Civil Litigation & Dispute Resolution

Class Actions

Construction Law

Administrative & Regulatory Law

Milestones & recognition

W. Graham Dutton founded the firm in March 1982, after being called to the Bar in 1962 and appointed Queen's Counsel in 1976.
Dutton Brock LLP marked its 40th anniversary in 2022.
Lexpert has ranked Dutton Brock as the most frequently recommended commercial insurance litigation firm in Canada.
Canadian Lawyer named Dutton Brock to its list of the Top 10 Insurance Defence Boutiques.
The Globe and Mail named Dutton Brock one of Canada's Best Law Firms in 2022, ranking it highly in the insurance category.
A lawyer at the firm received the Ontario Trial Lawyers Association's Distinguished Trial Lawyer Award.

Good to know

Wheelchair accessible A calendar with a checkmark beside a clock

By appointment

Lawyers 29

This firm’s lawyers at a glance

Called to the bar: 1969–2025 · median 18 years in practice 27 of 29 lawyers
Law schools: University of Windsor (12), Queen's University (4), Osgoode Hall Law School (3), University of Ottawa (3), Dalhousie University (2), University of New Brunswick and 4 more 29 of 29 lawyers

Who handles what

The neighbourhood

Dutton Brock's only office sits in Adelaide Place, a Class A office complex made up of two towers, 150 York Street and 181 University Avenue, in the middle of Toronto's financial core. The building connects directly into the city's underground PATH network, so lawyers and visiting clients can reach the subway and the surrounding office towers, hotels, and shops without going outside. It's a fitting base for a firm whose insurer and self-insured corporate clients are spread across Ontario rather than clustered nearby: the firm works out of this single downtown location instead of maintaining branch offices.

Frequently asked questions

Does Dutton Brock represent insurance companies or individual claimants?: Dutton Brock primarily represents insurers and self-insured corporations, defending claims rather than acting for the individuals bringing them.
What kinds of insurance disputes does Dutton Brock handle?: The firm's practice covers coverage disputes, statutory accident benefits, motor vehicle and product liability claims, professional liability, construction and municipal litigation, class actions, and appeals.
Does Dutton Brock offer mediation or arbitration for insurance disputes?: Yes. Several lawyers at the firm act as mediators and arbitrators in insurance matters.
How long has Dutton Brock been practising insurance law in Toronto?: The firm was founded in March 1982 by W. Graham Dutton and marked its 40th anniversary in 2022.
Where is Dutton Brock's office located?: The firm's office is at 150 York Street, Suite 800, in downtown Toronto, in the Adelaide Place complex in the city's financial district.
Does Dutton Brock have offices outside Toronto?: No. The firm works from a single Toronto office and serves insurer and corporate clients across Ontario from that location.

Where to find them

150 York Street, Suite 800, Toronto, ON M5H 3S5 · 416-593-4411

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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 ↗