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

1,037 Profile Views

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Santos Ruecker

Feb 04, 2026

Great people who truly care at John O'Connor - the best legal team in Ontario

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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Claire Marks

Feb 04, 2026

So glad I called John O'Connor to handle my Tax Law case in Toronto

Everyone at John O'Connor's office in Toronto was so nice and helpful. They made a tough situation a lot easier to deal with by being so patient and explaining everything clearly. I never felt like ju...

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Denise Stark

Feb 04, 2026

A huge weight off my shoulders thanks to the amazing work of John O'Connor

John O'Connor has been doing this since Recognized in Best Lawyers since 2021, and it definitely shows in their work. They're pros through and through and I wouldn't trust anyone else with my legal ma...

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Candice Stanton

Feb 04, 2026

Reliable lawyer you can count on - John O'Connor provided excellent service throughout

I've worked with a few lawyers in Toronto over the years, but John O'Connor stands out for their honesty and thoroughness. They were clear about the process and kept me updated at all times. I felt co...

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Guy Zieme

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...