Three senior executives at McLean, Virginia-based Bluestone Capital Partners will join Houlihan Lokey's (NYSE: HLI) aerospace, defense and government services group as managing directors after the Los Angeles, California-based investment bank merged ADG with Bluestone's mergers and acquisitions advisory practice. John Allen, Bluestone co-founder and CEO; Susan Gabay, Bluestone co-founder and managing director; and Greg Van ...