Department profile
Aird & Berlis LLP

Tax: Litigation

Global Guide 2026 : Canada


Aird & Berlis LLP

Rankings

About

Provided by Aird & Berlis LLP

The Aird & Berlis Tax Group is highly regarded on a national and international basis for domestic and international tax planning, structuring of business transactions and resolving tax disputes. Our lawyers are recognized for innovative domestic and international tax planning and for the development of creative structures. Other law firms and accounting firms regularly seek the expertise of our Tax Group to serve their clients more effectively.

We provide advice on the structuring of all types of business transactions, including mergers and acquisitions, reorganizations, plans of arrangement, financings and sale transactions. We also assist the owners of private corporations in doing succession planning. Lawyers from our Tax Group work closely with our Capital Markets Group and Corporate/Commercial Group to ensure that business transactions, arrangements and strategies produce the most favourable tax consequences possible.

As a result of our strong technical expertise and superior negotiating skills, we are able to successfully represent clients seeking advance tax rulings, handling audits, disputing and negotiating the settlement of tax reassessments and, if necessary, appearing on their behalf in the Tax Court and appellate courts of Canada.

Chambers Review

Provided by Chambers

Tax: Litigation - Canada


What the Team is Known For

Aird & Berlis is a popular choice among multinational companies for international tax planning, cross-border M&A, financings and restructurings. The firm offers a depth of knowledge in a number of tax law areas, including dispute resolution and regularly acts for clients in the finance, energy and mining sectors. Based in Toronto, the firm is recognised for its national reach, with further strength through its Vancouver office.

Work Highlights

Provided by Chambers

  • Aird & Berlis represented Linamar Corporation in its acquisition of Bourgault Industries for CAD640 million.

Strengths

Provided by Chambers

  • The firm's turnaround time to respond to either emails or phone calls is impeccable.

    Tax: Litigation respondentGlobal
  • The team has deep subject knowledge and an approachable, experienced team.

    Tax: Litigation respondentGlobal
  • The lawyers are very knowledgeable and experienced in the area. The firm is a one-stop shop for all my tax questions.

    Tax: Litigation respondentGlobal
  • Aird & Berlis has strong technical skills. They are also very collaborative and easy to work with to find solutions.

    Tax: Litigation respondentGlobal
  • Aird & Berlis has excellent income tax knowledge and superior communication skills.

    Tax: Litigation respondentGlobal

Notable Practitioners

Provided by Chambers

  • Senior StatespeopleBarbara Worndl
    Senior StatespeopleBarbara Worndl

    Barbara Worndl

    Barbara Worndl is a well-regarded and longstanding figure in the Canadian tax market. She advises clients on various transactions, with a particular focus on REITs and on the real estate sector more generally.

    • Barbara is a seasoned tax professional.

      Tax: Litigation respondentGlobal
    • Barbara is an outstanding practitioner and always gives reliable advice.

      Tax: Litigation respondentGlobal
  • Band 2Jack Bernstein
    Band 2Jack Bernstein

    Jack Bernstein

    Jack Bernstein chairs the firm's international tax practice and assists clients with tax planning and transactional mandates. He is admitted to both the Québec and Ontario Bars.
    • Jack Bernstein is a seasoned tax professional, who is well known in Canada, the US and elsewhere.

      Tax: Litigation respondentGlobal
    • Jack has seen every type of deal, is on top of every issue and seems to know everybody. He is a terrific guy.

      Tax: Litigation respondentGlobal
    • Jack is a legend at the tax bar. He is a tireless advocate and continues to deliver smart and practical advice.

      Tax: Litigation respondentGlobal
    • He has a very quick and creative mind. He sees the issue immediately and very quickly generates ideas to solve a problem.

      Tax: Litigation respondentGlobal
    • Jack has a lot of experience under his belt and he brings those years of experience with any discussion you have with him.

      Tax: Litigation respondentGlobal
  • Band 3Francesco Gucciardo
    Band 3Francesco Gucciardo

    Francesco Gucciardo

    Francesco Gucciardo is praised for his tax expertise as it relates to complex transactions.
    • Francesco is responsive, creative and anticipates my needs.

      Tax: Litigation respondentGlobal
    • He is incredibly responsive and very knowledgeable on the Canadian tax code.

      Tax: Litigation respondentGlobal
    • Francesco has very strong technical knowledge and explains complicated things in an easy manner to clients.

      Tax: Litigation respondentGlobal
    • Francesco is a strong tax lawyer with business acumen.

      Tax: Litigation respondentGlobal
    • The way he navigates the complexities and gives us real solutions is crystal clear.

      Tax: Litigation respondentGlobal
  • Band 3Louise R Summerhill
    Band 3Louise R Summerhill

    Louise R Summerhill

    Louise Summerhill is frequently called upon for her disputes practice, with a wealth of experience in tax litigation mandates.
    • Louise clearly demonstrates she cares about us as individuals and for our company's issues.

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

      Tax: Litigation respondentGlobal
    • We could not be more pleased with Louise's representation.

      Tax: Litigation respondentGlobal
    • Louise is amazing.

      Tax: Litigation respondentGlobal
  • Band 4Christopher Slade
    Band 4Christopher Slade

    Christopher Slade

    Christopher Slade regularly represents both domestic and international clients in tax litigation.
    • Christopher is an excellent litigator.

      Tax: Litigation respondentGlobal
    • Chris is an excellent attorney and is extremely knowledgeable.

      Tax: Litigation respondentGlobal
    • Christopher is a great lawyer. His knowledge of taxation is fantastic.

      Tax: Litigation respondentGlobal
    • He is a strong lawyer and good to deal with.

      Tax: Litigation respondentGlobal

Ranked Individuals at Aird & Berlis LLP (5)

Canada

Members

Provided by Aird & Berlis LLP

Aird & Berlis LLP has rankings in the following guides

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