In 1991, Mutual of America left in the building to move to 320 Park Avenue. In March 1995, law firm Orrick, Herrington & Sutcliffe, previously at 599 Lexington Avenue, signed a lease for of space on the buildings 17th through 20th floors after Bertelsmann left the space for their new headquarters at 1540 Broadway. In November 1997, the National Basketball Association announced plans to open their first-ever store at the base of the building, replacing bookstore B. Dalton. Brooks Brothers opened a store at the base of the building in 1998, signing a 15-year lease for at a rent of $5 million per year after Nautica backed out of the space.