Mayer Brown LLP added Marc E.M. Harrison as a partner in the corporate and securities practice.Harrison has extensive experience advising private equity sponsors on portfolio company acquisitions and sales in a broad variety of industries.Previously, he was a shareholder at Greenberg Traurig LLP.• Revolution Enterprises, a multistate cannabis operator in the health and wellness sector, added Alissa “Ali” L. Jubelirer as general counsel.She previously served as vice president, deputy general counsel and …