WASHINGTON, Oct. 16 -- Law firms assisted companies in the following recently announced transactions: * * * Debevoise & Plimpton... ...advised Tata Consultancy Services (TCS) on its acquisition of a 100% stake in ListEngage, a Salesforce Summit partner known for digital marketing expertise, to strengthen TCS's Salesforce business capabilities. The Debevoise team leading the transaction comprised M&A partner Andrew Bab, associates Tanaya Sanyal and Missy Aja, employee benefits and executive co more ST