Blake Lively has cut ties with her longtime publicist, Hollywood powerhouse Leslie Sloane, after the fallout from the actress’ headline-making drama with Justin Baldoni, three sources exclusively confirmed to Page Six. Lively hired the entertainment exec more than two decades ago, as she was rising to fame on “Gossip Girl” and Sloane was still working at PR firm Baker Winokur Ryder. Sloane is widely credited with helping propel Lively to stardom. In 2014, Sloane took Lively with her when she launched her own firm, Vision PR. Sloane’s company has since represented some of the biggest names in Hollywood, including Katie Holmes, Chris Rock,…









