N.C. Gen. Stat. § 1-254: Courts given power of construction of all instruments.

Any person interested under a deed, will, written contract or other writings constituting a contract, or whose rights, status or other legal relations are affected by a statute, municipal ordinance, contract or franchise, may have determined any question of construction or validity arising under the instrument, statute, ordinance, contract, or franchise, and obtain a declaration of rights, status, or other legal relations thereunder. A contract may be construed either before or after there has been a breach thereof. (1931, c. 102, s. 2.)