N.C. Gen. Stat. § 1-292
If the judgment appealed from directs the sale or delivery of possession of real property, the execution is not stayed, unless a bond is executed on the part of the appellant, with one or more sureties, to the effect that, during his possession of such property, he will not commit, or suffer to be committed, any waste thereon, and that if the judgment is affirmed he will pay the value of the use and occupation of the property, from the time of the appeal until the delivery of possession thereof pursuant to the judgment, not exceeding a sum to be fixed by a judge of the court by which judgment was rendered and which must be specified in the undertaking. When the judgment is for the sale of mortgaged premises, and the payment of a deficiency arising upon the sale, the undertaking must also provide for the payment of this deficiency.
N.C. Gen. Stat. § 1-292