50 ILCS 455/6
Any resolution or ordinance authorizing the issuance of bonds under this Act may contain covenants as to (a) the use and disposition of the revenues and receipts from the facility for which the bonds are to be issued, including the creation and maintenance of reserves; (b) the issuance of other or additional bonds relating to the facility or any rehabilitation, improvements, renovations, enlargements or additions thereto; (c) the maintenance and repair of such facility; (d) the insurance to be carried thereon and the use and disposition of insurance moneys; (e) the appointment of any bank or trust company within or outside the State of Illinois, having the necessary trust powers as trustee for the benefit of the bondholders, paying agent and bond registrar; (f) the investment of any funds held by such trustee; and (g) the terms and conditions upon which the holders of the bonds or any portion thereof or any trustees therefor, are entitled to the appointment of a receiver. Any resolution or ordinance authorizing the issuance of bonds under this Act may provide that the principal of and interest on any bonds issued under this Act shall be secured by a mortgage or indenture of trust covering such facility for which the bonds are issued and may include any improvements or extensions thereafter made. Such mortgage or indenture of trust may contain such covenants and agreements to properly safeguard the bonds as may be provided for in the resolution or ordinance authorizing such bonds and shall be executed in the manner as may be provided for in the resolution or ordinance. The provisions of this Act and any such resolution or ordinance and any such mortgage or indenture of trust shall constitute a contract with the holder or holders of the bonds and continue in effect until the principal of, the interest on, and the redemption premiums, if any, on the bonds so issued have been fully paid, and the duties of the authority and its corporate authorities and officers under this Act and any such resolution or ordinance and any such mortgage or indenture of trust shall be enforceable by any bondholder by mandamus, foreclosure of any such mortgage or indenture of trust or other appropriate suit, action or proceedings in any court of competent jurisdiction; provided the resolution or ordinance or any mortgage or indenture of trust under which the bonds are issued may provide that all such remedies and rights to enforcement may be vested in a trustee for the benefit of all the bondholders which trustee shall be subject to the control of a majority of the holders or owners of any outstanding bonds.
50 ILCS 455/6