Kaye Scholer, a nearly 100-year-old firm that has experienced major shifts in personnel, finance and leadership in the last three years, is preparing for another jolt to its system­—a move from its home since 1959 to modern digs on the West Side.

Kaye Scholer has been headquartered at 425 Park Ave. for the last 55 years, making it one of the longest commercial tenants in Manhattan.