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

1,029 Profile Views

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Cecilia Stark

Feb 04, 2026

Derek G. Chiasson did a great job handling my complex Tax Law case from start to finish

Solid experience overall with the law firm of Derek G. Chiasson. 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 ne...

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Tanya Bashirian

Feb 04, 2026

Absolutely Great! I couldn't be happier with the service from Derek G. Chiasson

Derek G. Chiasson is fantastic and very professional. Don't hesitate to hire them if you're in Quebec and need help. They really know their stuff and will go the extra mile to make sure you're taken c...

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Francis Hand

Feb 04, 2026

A very good experience overall with the entire team at Derek G. Chiasson's legal practice

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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Glenda Leannon

Feb 04, 2026

Simply amazing representation from Derek G. Chiasson's office during my recent legal matter

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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Jake Lang

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...