Simon Property Group, the largest owner of shopping malls in the U.S., has teamed up with hedge fund Paulson & Co. for a new offer for bankrupt rival General Growth Properties. And plenty of Am Law 100 firms are already involved.

Wachtell, Lipton, Rosen & Katz corporate partners Adam Emmerich and Benjamin Roth led a team from the firm advising Indianapolis-based Simon when the mall operator made its $10 billion unsolicited offer in February for GGP, the second-largest mall owner in the country.