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Don is a University of Ottawa graduate where he obtained his Bachelor of Commerce (Honours) Degree in 1978. After working for a CA firm in a major city for one year, Don returned home to join Cox Hyatt & Company, a well-established firm in Windsor Ontario. He obtained his CA designation in 1981 and in 1989 he became a partner of that firm.

In 1997 Don, along with Harold Hyatt, FCA founded Hyatt Lassaline LLP. Don’s role today as practice leader allows him to focus on the development and implementation of strategic measures targeted at growing the firm.  Don’s areas of interest include business growth services, business acquisitions, business succession and business financing. His hands-on style allows him to fully understand client challenges and goals. His greatest reward has been witnessing both team members and clients develop to their maximum potential.

Don has served as a board member and chairperson for a number of community organizations and continues to do so today. In his spare time, he loves to discover new food, explore new destinations, and play an occasional round of golf. Don is fluently bilingual and lives in St. Joachim with his wife, Lisette. He is the father of two children and a proud grandfather.

Don Lassaline – B. Comm., CPA, CA

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Email:  Follow:

Don is a University of Ottawa graduate where he obtained his Bachelor of Commerce (Honours) Degree in 1978. After working for a CA firm in a major city for one year, Don returned home to join Cox Hyatt & Company, a well-established firm in Windsor Ontario. He obtained his CA designation in 1981 and in 1989 he became a partner of that firm.

In 1997 Don, along with Harold Hyatt, FCA founded Hyatt Lassaline LLP. Don’s role today as practice leader allows him to focus on the development and implementation of strategic measures targeted at growing the firm.  Don’s areas of interest include business growth services, business acquisitions,

business succession and business financing. His hands-on style allows him to fully understand client challenges and goals. His greatest reward has been witnessing both team members and clients develop to their maximum potential.

Don has served as a board member and chairperson for a number of community organizations and continues to do so today. In his spare time, he loves to discover new food, explore new destinations, and play an occasional round of golf. Don is fluently bilingual and lives in St. Joachim with his wife, Lisette. He is the father of two children and a proud grandfather.


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