PHILADELPHIA, PA — Rubenstein Partners, L.P. (together with its affiliates, Rubenstein), a vertically-integrated real estate investment advisor focused on value-added office property opportunities, together with its partner Amerimar Enterprises Inc. (Amerimar), announced the completion of a 54,000 s/f lease expansion with Children’s Hospital of Philadelphia (CHOP) at The Wanamaker Office Building (Wanamaker). CHOP now leases over 300,000 s/f across 6 floors at Wanamaker following the newly signed transaction. At the same time, the building ownership is on the verge of completing the final phase of their current modernization plans for the historic building. “We’re pleased that our strategy for Wanamaker appears to be resonating with existing tenants and major users seeking modern space in Center City,” said Stephen Card, regional director of the Mid-Atlantic and principal at Rubenstein. “From the beginning, we have sought to preserve the building’s best architectural and historical elements while modernizing it with thoughtful improvements.