Command Software Staffing subleased space at Chase Tower at 2200 Ross Ave. in Dallas. The company will occupy 7,100 square feet on the 48th floor. The Chase Tower is a 55-story, 1.25 million-square-foot office building. It is located near the Dallas Tollway, Central Expressway, Interstate Highway 30, 35E, and 45. Command Software is a software-staffing firm that offers IT. It will use the space as company headquarters. Barbara Houlihan of Billingsley Co. represented the landlord. Stan McClure and Ben Sumner of Insignia/ESG represented Command Software.