White & Case LLP added Andrew O’Neill as a partner.O’Neill’s practice focuses on complex corporate restructurings and reorganizations and other distressed situations. He was previously at Sidley Austin LLP.• Riley Safer Holmes & Cancila added Noreen H. Cull as counsel to the firm’s labor and employment group in Chicago.Cull counsels employers countering claims of equal employment opportunity discrimination, retaliatory discharge, workplace harassment, and wage-and-hour violations. She …