LAWYER PROFILE
Patrick Marley

Patrick Marley

Global 2026

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Ranked in 1 practice area

About

Provided by Osler, Hoskin & Harcourt LLP

Global

Practice Areas

Patrick is widely recognized as a leading international tax lawyer, having specialized in cross-border tax planning and M&A for more than 25 years. Patrick is the former Co-Chair of Osler’s National Tax Group, and the former President of the Canadian branch (and former chair of the North American region) of the International Fiscal Association. He provides clarity and creativity as a trusted adviser to many of Canada’s largest companies with a practice that includes all aspects of corporate income tax including advisory, transactional and disputes work.

Patrick represents clients in various industries including financial services, technology, mining, telecom, manufacturing and private equity. Patrick has appeared before the Canadian House of Commons Standing Committee on Finance and the Canadian Senate Banking Committee as an expert on international tax matters. Prior to joining Osler, Patrick drafted tax laws and formulated tax policy related to foreign affiliates and foreign investments with the Canadian Department of Finance.

Career

New York University, LL.M.

University of Western Ontario, LL.B.

Queen’s University, B.Comm.

Bar Admission: New York, 2004 | Ontario, 1997

Professional Memberships

International Fiscal Association, Past President and Member of Counsel

International Fiscal Association, Former Chair of North American Region

Canadian Tax Foundation

American Bar Association, International Section, Past Co-Chair of Taxation Committee

New York University, International Tax Program Practice Council

Ontario Bar Association

New York Bar Association

Chambers Review

Provided by Chambers

Chambers Global Guide

Tax - Canada

Band 1
Band 1

Individual Editorial

Toronto-based Patrick Marley enjoys a stellar reputation and is particularly noted for his expertise in international transactions, as well as advising on major corporate listings and commercial agreements.

Strengths

Provided by Chambers

  • He is the Canadian expert in international tax.

    TaxChambers Global Guide
  • Pat is very timely and practical with his responses. He understands our business and is able to match our business needs with the tax challenges we face.

    TaxChambers Global Guide
  • Pat is very responsive, thorough and makes sure all considerations are being conveyed in a clear and concise manner.

    TaxChambers Global Guide

Ranked Individuals at Osler, Hoskin & Harcourt LLP (83)

Canada

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