N.C. Gen. Stat. § 35A-1360

All deeds executed prior to the first day of January, 1944, by any guardian, acting under authority obtained by him from the superior court as required by law, in which the guardian has omitted to affix his seal after his signature and/or has omitted to affix the seal after the signature of his ward shall be good and valid, and shall pass the title to the land which the guardian was authorized to convey: Provided, however, this section shall not apply to any pending litigation.