WASHINGTON, July 24 -- Law firms assisted companies in the following recently announced transactions: * * * Debevoise & Plimpton LLP... ...advised Wm Morrison Supermarkets Group on its offering of pound sterling500 million and Euros500 million senior secured notes, due in 2031, to raise capital. The firm also advised Morrisons on related tender offers for existing sterling and euro-denominated senior secured notes due in 2027. The Debevoise team was led by partners Alan Davies, Steve Slutzky, more ST