Continuing a string of lateral partner hiring, McDermott, Will & Emery LLP said Monday it has added Terrence J. Dee, a first-chair trial lawyer and former partner at Kirkland & Ellis LLP.Dee, a product-liability litigator currently defending a mass-tort case regarding the health effects of cellphones, is the 15th partner McDermott has added worldwide since April 1. It has added three partners in Chicago during that span.It is somewhat rare for a Kirkland partner with a healthy practice to leave the city’s …