WASHINGTON, Sept. 12 -- Law firms assisted companies in the following recently announced transactions: * * * BCLP... ...advised HELLENiQ Energy on its acquisition of Elpedison BV, securing full ownership of the joint venture after Edison exited the partnership. The deal followed the dissolution of their longstanding joint venture, established in 2008 to operate power stations and electricity and gas trading in Greece. BCLP guided HELLENiQ through a competitive bidding process to acquire Ediso more ST