N.C. Gen. Stat. § 54-58: Transfer of mortgaged lands.

The acquirer of any lands mortgaged to a land mortgage association shall enter at once, on the acquisition of the land, into a written agreement with the association, attested by a notary, or a justice, and assume the personal responsibility for the indebtedness to the association attaching to such lands. This document must be presented to the trustees within 14 days after demand. (1925, c. 223, s. 10.)