N.C. Gen. Stat. § 116-206

With the proceeds of bonds or any other funds of the Authority available therefor, the Authority may acquire from any bank, insurance company, or educational lending institution, eligible student obligations, or any interest or participation therein in such amount, at such price or prices and upon such terms and conditions as the Authority shall determine to be in the public interest and desirable to carry out the purposes of this Article. The Authority shall take such actions and require the execution of such instruments deemed appropriate by it to permit the recovery, in connection with any such obligations or any interest or participation therein acquired by the Authority, of the amount to which the Authority may be rightfully entitled, and otherwise to enforce and protect its rights and interest thereto.