CHICAGO — BMO Financial Group has opened BMO Tower at 320 S. Canal St. in Chicago’s West Loop Gate neighborhood. The 50-story office tower will serve as BMO’s new U.S. headquarters. More than 3,000 employees will be based at BMO Tower, which rises more than 700 feet. Developed by Riverside Investment & Development, the property’s main floor features a new technology-enabled BMO bank branch. The project, which features a fitness center and 1.5-acre greenspace, was designed to achieve WELL Building Platinum and LEED Gold certifications.