Our Firm
Gibson Tanner Rabin LLP is a mid-sized Ottawa law firm comprised of lawyers, registered para-legals and support personnel offering legal services in English, French, Italian, German, Sinhala, Tamil and Arabic.
Our Firm
Our general practice areas form the 4 pillars of the firm. The 4 pillars are corporate/commercial law, real estate law, wills & estates, and litigation/family law. The logo of the firm contains 4 distinct elements or bars representing each of these 4 pillars.
Each of the 4 practice pillars is led by a partner practicing with an emphasis on an area of law in each of the 4 pillars. These complimentary practice areas are supported by a team consisting of experienced counsel, associates, as well as by licensed paralegals and clerks.
The firm operates from downtown Ottawa – court house district on Metcalfe Street with easy access to the Superior and Federal Courts, as well as to the various provincial and federal ministry offices required for our law practices.


Our History
The firm draws upon law practices with roots in the national capital region spanning a period of 50 plus years. The firm was formed by the four founding partners Russell Gibson, Jason Rabin, and Harland Tanner in 2024. The firm began operations with 12 lawyers, two registered paralegals, and 10 clerks and support personnel.

Our Values
Guided by reason, focused on value, and founded on integrity, the firm continues to build on its roots in Ottawa spanning 50 years of law practice.
The firm is active in the community and in charitable undertakings because the founders are committed to building business relationships with those we serve.
Guided by Reason, Focused on Value, Founded on Integrity
Our approach provides clients with a better way forward. The close collaboration of the members of the firm is, by design, focused on results, delivering value and exceptional service.