Milliman USA Inc. leased 35,349 square feet at 1500-1550 Liberty Ridge Drive, which is located in the Chesterbrook Corporate Center in Wayne, PA. The facility will serve as the new headquarters for Milliman USA. Liberty Property Trust completed the Class-A, three-story, 104,000-square-foot phase of the 231,620-square-foot building in March of this year. The building is currently 70% leased. Milliman USA is a firm of consultants and actuaries serving the full spectrum of business, governmental and financial organizations. Rob Murdocca of Liberty Property Trust, representing the building owner LPT, facilitated the long-term office lease. Jeff Mack and Ross Foreman of Smith Mack represented the tenant.