John O'Connor

John O'Connor

Tax Law
Recognized in Best Attorney USA since 2021

About John

John O'Connor is a partner and Co-Head in the Tax Group in Toronto. John's practice involves all areas of corporate tax, focusing primarily on complex mergers, acquisitions and reorganizations, along with advising tax-exempt entities. In addition, John regularly consults on a variety of technical tax matters.

John O'Connor is a partner and Co-Head in the Tax Group in Toronto. John's practice involves all areas of corporate tax, focusing primarily on complex mergers, acquisitions and reorganizations, along with advising tax-exempt entities. In addition, John regularly consults on a variety of technical tax matters.

John O'Connor is a partner and Co-Head in the Tax Group in Toronto. John's practice involves all areas of corporate tax, focusing primarily on complex mergers, acquisitions and reorganizations, along with advising tax-exempt entities. In addition, John regularly consults on a variety of technical tax matters.

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Reviews

4.5 / 5

39 Reviews

1,043 Profile Views

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Miguel Rohan

Feb 04, 2026

Really helpful and compassionate service from everyone at John O'Connor's firm

I've already told all my friends and family about John O'Connor. If you need Tax Law help in Ontario, they're the ones to see without any doubt. They are local experts who really understand the commun...

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Owen Kuvalis

Feb 04, 2026

Absolutely Great! I couldn't be happier with the service from John O'Connor

Really glad I found John O'Connor for my case. They were a huge help and made everything understandable. I was very impressed with their knowledge and how they handled the opposition. If you're in Ont...

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Cassandra Hayes

Feb 04, 2026

John O'Connor did a great job handling my complex Tax Law case from start to finish

Solid experience overall with the law firm of John O'Connor. They know Tax Law inside and out and gave me great advice. Very helpful and got the job done exactly as they said they would. If you need a...

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Willie Schamberger

Feb 04, 2026

Absolutely Great! I couldn't be happier with the service from John O'Connor

Really glad I found John O'Connor for my case. They were a huge help and made everything understandable. I was very impressed with their knowledge and how they handled the opposition. If you're in Ont...

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Conrad Hintz

Feb 04, 2026

A very good experience overall with the entire team at John O'Connor's legal practice

Needed help with Tax Law and John O'Connor delivered on their promises. They're professional, efficient, and easy to talk to. Good choice for anyone in Ontario looking for high-quality legal represent...