Specifications include, but are not limited to:. Vendor shall provide appraisal service for the Tinley Park Mental Health Center and the adjoined Howe Developmental Center located at 7400 W. 183rd Street and 7600 W. 183rd Street, respectively, all within Cook County. Together, the properties contain (excluding the United Cerebral Palsy building) 274.31 acres or 11,949,117 square feet of land and improvements consisting of 91 separate structures. The properties are bound to the south by 183rd Street, to the east by Harlem Avenue and to the north by the Metra Rock Island railroad tracks. The improvements include a two-story power plant, 50 houses (2,800 square feet each), various administration building, dormitories, and an underground tunnel system. Vendor’s appraisal is intended to identify the Fair Market Value of the property in compliance with the State Property Control Act (30 ILCS 605/7.1). Along with the appraisal report, Vendor shall provide the State with a signed certification in accordance with Standards Rules 2-3 of the Uniform Standards of Professional Appraisal Practice (USPAP).