In order to admit a mortgage to record, it shall be signed by the maker, attested by an officer as provided in Code Section 44-2-15, and attested by one other witness. In the absence of fraud, if a mortgage is duly signed, witnessed, filed, recorded, and indexed on the appropriate county land records, such recordation shall be deemed constructive notice to subsequent bona fide purchasers.
OCGA § 44-14-33