North Carolina General Statutes Chapter 47. Probate and Registration § 47-53.1. Acknowledgment omitting seal of clerk or notary public

Where any person has taken an acknowledgment as either a notary public or a clerk of a superior court, deputy clerk of a superior court, or assistant clerk of a superior court and has failed to affix his or her seal and this acknowledgment has been otherwise duly probated and recorded then this acknowledgment is hereby declared to be sufficient and valid.  This section applies only to those deeds and other instruments acknowledged prior to April 1, 2013.