Derek G. Chiasson

Derek G. Chiasson

Tax Law
Recognized in Best Attorney USA since 2018

About Derek

Derek Chiasson is a partner in our tax team. His principal focus is on domestic and international tax aspects of mergers and acquisitions, corporate finance and corporate reorganizations, for public and private corporations. He also regularly advises on tax disputes, commodity taxes and executive compensation. Derek leverages his broad experience to bridge tax, finance and legal aspects of the transactions and reorganizations he works on, while maintaining strong technical skills, attention to detail and creativity. He also has industry experience, having served as vice-president, corporate development/strategy and legal affairs of a multi-national US public company in the video game industry listed on the NASDAQ exchange.

Derek Chiasson is a partner in our tax team. His principal focus is on domestic and international tax aspects of mergers and acquisitions, corporate finance and corporate reorganizations, for public and private corporations. He also regularly advises on tax disputes, commodity taxes and executive compensation. Derek leverages his broad experience to bridge tax, finance and legal aspects of the transactions and reorganizations he works on, while maintaining strong technical skills, attention to detail and creativity. He also has industry experience, having served as vice-president, corporate development/strategy and legal affairs of a multi-national US public company in the video game industry listed on the NASDAQ exchange.

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Reviews

4.6 / 5

37 Reviews

1,028 Profile Views

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Suzanne Schowalter

Feb 04, 2026

Highly recommend Derek G. Chiasson for anyone needing expert Tax Law help in Quebec

Short and sweet: Derek G. Chiasson is the real deal and a true professional in the field of Tax Law. If you're in Montréal and need help with your legal issues, call them immediately. You won't regret...

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Salvatore Auer

Feb 04, 2026

The absolute best in Montréal for Tax Law - and I mean that from the bottom of my heart

If you're looking for someone who actually cares and will fight for you, go to Derek G. Chiasson. They helped me out big time with my Tax Law issue and kept me informed at every step of the process. T...

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Monique West

Feb 04, 2026

Professional service and clear communication provided by Derek G. Chiasson in Montréal

It's hard finding a reliable lawyer these days, but Derek G. Chiasson in Montréal is definitely one of the good ones. Would use them again if needed without hesitation. They are professional, responsi...

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Jon Okuneva

Feb 04, 2026

Great people who truly care at Derek G. Chiasson - the best legal team in Quebec

Everyone at Derek G. Chiasson's office in Montréal 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 li...

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Virgil Schoen

Feb 04, 2026

Many thanks to Derek G. Chiasson for the hard work and dedication to my legal matter

If you need a Tax Law lawyer, Derek G. Chiasson is the one to call. Great job and very responsive team. They kept me in the loop and always had time to explain the details of my case. I felt like I wa...