O'Donohue & O'Donohue

Barristers & Solicitors

We offer outstanding professionalism matched with experience.

Phone: 416-361-3231
Email: mail@odonohue.ca

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The Firm

Founded in 1951, O’Donohue & O’Donohue is an established estates, trusts and wealth management law practice based in Toronto serving the needs of individuals, families, and their business interests domestically and internationally.

We maintain a comprehensive network of foreign and domestic professional colleagues with whom we partner on a case-by-case basis to provide our clients with the range of skills and quality of service offered by major national law firms.

At O’Donohue & O’Donohue, we understand that when it comes to tax, succession and wealth planning, individual concerns are just as important as the technical issues. Clients come to us for practical advice that addresses their particular situation and offers a solution.

Our aim is to build a close relationship with each of our clients, so that we can react intelligently and sensitively to their individual needs as well as the demands placed upon them.


Stephen O'Donohue


T 416-361-3231
E stephen.odonohue@odonohue.ca

Stephen O’Donohue is the principal of O’Donohue & O’Donohue and is certified by the Law Society of Upper Canada as a Specialist in Estates and Trusts Law.

Gregory W. Cooper


T 416-361-3231
E gwcooper@coopermeldrum.ca
E greg@cooperadr.com

Greg Cooper is a senior family law lawyer in Toronto who focuses on mediation, arbitration, and neutral evaluation. He acts as counsel to O’Donohue & O’Donohue.

Gregory R. Mallough


T 416-362-6265
E gmallough@hooeyremus.com

Greg Mallough is a senior corporate/commercial lawyer in Toronto whose practice focuses on business transactions and business immigration law. He acts as counsel to O'Donohue & O'Donohue.

Stephen W. Brett


T 416-362-4225
E sbrett@hooeyremus.com

Steve Brett is a senior real estate lawyer in Toronto who focuses on commercial and residential real estate transactions, including commercial leasing, as well as wills, powers of attorney and estates. He acts as counsel to O'Donohue & O'Donohue.


Stephen O'Donohue, B.Sc., M.B.A., LL.B., T.E.P.


Certified as a Specialist in Estates and Trust Law by The Law Society of Upper Canada, and also a Member of the Law Society of British Columbia


Stephen is recognized as a specialist in estates and trust law. Stephen is also engaged in tax, investment and wealth preservation planning as well as domestic and international business law and the law relating to charities.

He advises on all aspects of estate planning, estate administration and estate litigation and has extensive experience with large, complex estates, including cases involving estates valued over one billion dollars.

Stephen serves as a professional executor and trustee for large, ongoing estates and trusts as well as readily distributable estates. He has extensive experience acting as general counsel to families and corporations.

Stephen also serves as a director and officer of a number of private corporations. Stephen has been involved in a variety of notable cases and has appeared before the Federal Court of Appeal and various levels of Ontario Courts.

Stephen’s multi-disciplinary background and education enables him to provide legal solutions with a business perspective. Stephen was called to the Ontario and British Columbia bars in 1988 and 1991. Prior to joining O’Donohue & O’Donohue in Toronto, he worked for a large law firm in Vancouver, British Columbia.


  • The Law Society of Upper Canada
  • The Law Society of British Columbia
  • Ontario Bar Association
  • Toronto Lawyers Association
  • Society of Trust and Estate Practitioners
  • Canadian Tax Foundation
  • International Fiscal Association
  • Thomas More Lawyers’ Guild of Toronto
  • Ireland Canada Chamber of Commerce
  • Life Member – Barbados National Trust


  • University of Western Ontario, B.Sc. (Mathematics) 1981
  • McGill University, M.B.A. (Finance) 1983
  • University of Windsor, LL.B. 1986

Practice Areas

We are a boutique law firm located in Toronto, Ontario, Canada. We serve the needs of individuals, families, and their business interests domestically and internationally. Below is a list of our services:


O'Donohue & O'Donohue

Barristers & Solicitors

330 Bay Street, Suite 210, Toronto, Ontario, Canada M5H 2S8
T 416-361-3231 F 416-361-3472 E mail@odonohue.ca