Lavertu, a 300-pound Quebec City native, was a four-time Quebec conference all-star and three-time CIS all-Canadian at Laval. He was a member of the Rouge et Or's Vanier Cup-winning squads in 2010, 2012 and 2013.
The Stampeders acquired the top pick at the CFL draft and the rights to veteran centre Marwan Hage in a trade with the expansion Ottawa Redblacks. Ottawa acquired veteran offensive lineman Jon Gott in the deal.
The Stampeders also signed non-import defensive back Adam Thibault and import defensive lineman Kayvon Sherrill.