Skadden Arps Slate Meagher & Flom LLP promoted Marcella L. Lape and David R. Clark to partner.Lape has extensive experience representing corporate and individual clients in commercial litigation and arbitration, including securities class actions, shareholder derivative suits, and disputes related to mergers and acquisitions and commercial contracts.Clark focuses on mergers and acquisitions, corporate governance, and other corporate and securities matters. He has advised public and private companies and their boards …