Alexandra Investment Management LLC leased the top two floors at 767 Third Ave. The full 40th and partial 39th floor space measures 10,215 square feet. The unique features of the space include a skylight, double height windows, sweeping inter-connecting staircase, and panoramic city and river views. Alexandra is relocating from 237 Park Ave. This class-A, 40-story office building measures approximately 300,000 square feet and is now 95% leased. Erik S. Harris and Brian G. Goldman of Newmark & Company Real Estate Inc. represented the tenant, while Michael I. Lenchner and Gregory A. Gang represented the landlord, Kaufman Organization.