N.C. Gen. Stat. § 28A-19-11

When claims are not barred pursuant to G.S. 28A-19-3, it shall be within the discretion of the personal representative or collector acting in good faith to determine whether or not any applicable statute of limitations shall be pleaded to bar a claim which the personal representative or collector believes to be just. The personal representative's or collector's admission of such claim or the personal representative's or collector's decision not to plead the statute in an action brought on the claim shall, in the absence of any showing of collusion or bad faith, be binding on all persons interested in the estate.