The Controller may sign, endorse, or otherwise authenticate, in the name and on behalf of the State, subscribing his name, as Controller, under such writing, any securities, bills of sale, documents, or other instruments required, under customary business practice, for the consummation of the transactions authorized by this chapter. For all purposes, such endorsement is conclusive and binding against the State and the heirs, devisees, legatees, or other claimants of the property covered by such endorsement.