O.C.G.A. § 44-2-13 (2019)

(a) When the creation of a new county or a change in county lines causes land to be included in a different county than that in which it was situated at the time of the recording of a deed, mortgage, or other lien therein, any holder of such a deed, mortgage, or other lien may have such instrument rerecorded in the office of the clerk of the superior court of the county in which the land is newly situated. If the original of such deed, mortgage, or other lien is lost, a certified copy thereof from the record where the same was recorded may in like manner be rerecorded in the county in which the land affected is newly situated. Upon payment of the recording fees, it shall be the duty of the clerk of the superior court of the county where the instrument is rerecorded to cause the deed, mortgage, or other lien to be entered upon the proper records for such papers; and the clerk shall note on the record book the date of the original recording and the book and page or pages upon which the deed or mortgage or other lien was originally recorded. (b) The rerecording of a deed, mortgage, or other lien pursuant to subsection (a) of this Code section shall not affect the validity of the original record as notice.