Less than a month after adding a half dozen new partners to its New York operation, Pierce Bainbridge Beck Price & Hecht, the self-proclaimed “fastest-growing law firm” in Big Law, has added partner Deborah Renner, the New York head of Baker & Hostetler’s class action practice.

Renner, who officially joined the litigation shop Monday, focuses her practice on commercial litigation, including the defense of data breach, consumer fraud and securities class actions.