Lavoie, an offensive lineman out of Laval, was Calgary's top selection at the 2015 draft. He helped the Rouge et Or win Vanier Cup titles in 2012 and 2013 and was a two-time CIS all-Canadian.
In 2014, Lavoie was part of an offensive line that paved the way for the leading rushing attack in the Quebec conference (235.4 rushing yards per game) and the best offence (565.8 total offensive yards per game).
The Stampeders also signed their second-round pick, receiver Lemar Durant, and sixth-round selection, offensive lineman Aaron Picton.
International offensive lineman Garry Williams and international defensive back Ciante Evans also signed with the reigning Grey Cup champions.