LAWYER PROFILE
Louise R Summerhill

Louise R Summerhill

Global 2026

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Ranked in 1 practice area

About

Provided by Aird & Berlis LLP

Practice Areas

A creative thinker and natural problem solver, Louise continuously looks for new ways to approach and resolve her clients’ tax issues. Her technical expertise and knowledge of her clients’ businesses leads to solutions others may not see. When she takes matters to court, her strong advocacy skills are evident in her straightforward yet detailed presentation of the facts.

Louise is a member of Aird & Berlis LLP's Tax Group, Co-Chair of the Tax Litigation Group, and member of the Charity and Not-for-Profit Law Group. She practises almost exclusively in the area of tax litigation. She provides support and advocacy at the audit stage, through the objection procedure and in court if necessary. Louise also has extensive experience advising clients on transfer pricing, goods and services tax, provincial tax and federal income tax and charity law issues.

She has appeared in the Tax Court of Canada, the Federal Court of Appeal, the Ontario Superior Court and the Ontario Court of Appeal. Louise was formerly the Chair of the Student Committee for the firm and Co-Chair of the firm's Women's Initiative.

Learn more about Louise here: https://www.airdberlis.com/people/bio/louise-r-summerhill

Professional Memberships

Memberships

The Advocates' Society

Canadian Tax Foundation

Thomas More Lawyers' Guild of Toronto

Women Presidents' Organization (2004 - 2009)

Community Involvement

Birthright International, Board of Directors

Philip Aziz Centre for Hospice Care, Chair, Board of Directors

Teaching Engagements

Co-creator and former adjunct professor of "The Course of a Transaction," Osgoode Hall Law School

Chambers Review

Provided by Chambers

Chambers Global Guide

Tax: Litigation - Canada

Band 3
Band 3

Individual Editorial
Louise Summerhill is frequently called upon for her disputes practice, with a wealth of experience in tax litigation mandates.

Strengths

Provided by Chambers

  • Louise clearly demonstrates she cares about us as individuals and for our company's issues.

    Tax: LitigationChambers Global Guide
  • She is everything you would want to have as a client. It is really comforting to have her on the case.

    Tax: LitigationChambers Global Guide
  • We could not be more pleased with Louise's representation.

    Tax: LitigationChambers Global Guide
  • Louise is amazing.

    Tax: LitigationChambers Global Guide

Ranked Individuals at Aird & Berlis LLP (16)

Canada

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