WASHINGTON, Oct. 15 -- Law firms assisted companies in the following recently announced transactions: * * * Debevoise & Plimpton... ...advised GreensLedge, a boutique investment bank recognized for its expertise in structured credit and securitization, in connection with Raymond James Financial Inc.'s acquisition of a majority stake in GreensLedge. The deal strengthens Raymond James' footprint in the structured finance market while expanding GreensLedge's capabilities under a larger financial more ST