Quinn Emanuel Urquhart & Sullivan is beefing up its international litigation offerings with a big name in sovereign disputes: Dennis Hranitzky, whose résumé includes helping to secure a $2.4 billion judgment against Argentina in a long-running, multijurisdictional battle over defaulted Argentine debt.

Hranitzky is joining Quinn Emanuel as the head of the firm’s newly formed sovereign litigation practice. The decision to leave Dechert, where he was the co-head of the firm’s international and insolvency litigation group, was difficult, Hranitzky said, but once he decided to depart, Quinn Emanuel was an easy choice.