Blake Cassels & Graydon and McCarthy Tétrault are acting as lead advisers in Canadian pension fund Ontario Municipal Employees Retirement System’s (OMERS’) sale of LifeLabs Medical Laboratory Services to U.S.-based Quest Diagnostics Inc. for CA$1.35 billion (US$985 million), including debt.

OMERS, the pension fund manager for public-service employees and retirees in Ontario, Canada’s largest province, has owned and grown LifeLabs, the country’s largest medical testing company, since 2007.