Ga. Code § 12-3-335
Except to the extent the rights given in this Code section may be restricted by resolution passed before the issuance of bonds or by a trust indenture, any holder of revenue bonds or interest coupons issued under this part, any receiver for such holders, or any indenture trustee, if any, may either at law or in equity, by action, mandamus, or other proceedings, protect and enforce any and all rights under the laws of the State of Georgia or granted by this part or under such resolution or trust indenture. Such holder, receiver, or trustee may enforce and compel performance of all duties required by this part, or by resolution or trust indenture, to be performed by the authority or any officer thereof, including the fixing, charging, and collecting of revenues, rents, and other charges for the use of the project or projects. In the event of default of the authority upon the principal and interest obligations of any revenue bond issue, such holder, receiver, or trustee shall be subrogated to each and every right, specifically including the contract rights of collecting rental, which the authority may possess against the state or any department, agency, or institution of the state and, in the pursuit of his or its remedies as subrogee, may proceed either at law or in equity, by action, mandamus, or other proceedings, to collect any sums by such proceedings due and owing to the authority and pledged or partially pledged directly or indirectly to the benefit of the revenue bond issue of which such holder, receiver, or trustee is representative. No holder, receiver, or trustee shall have the right to compel any exercise of the taxing power of the state to pay any such bond or the interest thereon, or to enforce the payment thereof against any property of the state, nor shall any such bond constitute a charge, lien, or encumbrance, legal or equitable, upon the property of the state.
OCGA § 12-3-335