Ballard Spahr Stillman & Friedman will be moving its office to 919 Third Ave.

The firm has taken a three-year lease for nearly 20,000 square feet on the 37th floor with Jenner & Block, a subtenant of Debevoise & Plimpton. In July 2013, the litigation boutique Stillman & Friedman joined forces with Philadelphia-based Ballard Spahr and became the firm’s New York City office.