All acknowledgments and proofs of execution, including privy examination of married women, of any mortgage or deed of trust executed to secure the payment of any indebtedness to any State or federal building and loan or savings and loan association shall not be, nor held to be, invalid by reason of the fact that the clerk of the superior court, justice of the peace, notary public, or other officer taking such acknowledgment, proof of execution or privy examination, was an officer or stockholder in such building and loan association; but such proofs and acknowledgments of all such instruments, and the registration thereof, if in all other respects valid, are hereby declared to be valid.
Nor shall the registration of any such mortgage or deed of trust ordered to be registered by the clerk of the superior court, or by any deputy or assistant clerk of the superior court, be or held to be invalid by reason of the fact that the clerk of the superior court, or deputy, or assistant clerk of the superior court, ordering such mortgages or deeds of trust to be registered was an officer or stockholder in any State or federal building and loan or savings and loan association, whose indebtedness is secured in and by such mortgage or deed of trust.