Discuss, consider and take appropriate action regarding the retention of the law firm of Tiemann, Shahady & Hamala, P.C.to provide legal advice and assistance with statutory and regulatory requirements relating to transfer of permitting and regulation of on-site sewage facilities from the Williamson County and Cities Health District to the Williamson County Infrastructure Department; and exemption of those attorney services from the competitive bid/proposal requirements of the County Purchasing Act pursuant to the discretionary exemption for personal or professional services, as set forth under Section 262.024(a)(4) of the Texas Local Government Code.