N.C. Gen. Stat. § 43-19
Any person making any claim to or asserting any lien or charge upon registered land, existing at the initial registry of the same and not shown upon the register or adverse to the title of the registered owner, and for which no other provision is herein made for asserting the same in the registry of titles, may make an affidavit thereof setting forth his interest, right, title, lien or demand, and how and under whom derived, and the character and nature thereof. The affidavit shall state his place of residence and designate a place at which all notices relating thereto may be served. Upon the filing of such affidavit in the office of the clerk of the superior court, the clerk shall order a note thereof as in the case of charges or encumbrances, and the same shall be entered by the register of deeds. Action shall be brought upon such claim within six months after the entry of such note, unless for cause shown the clerk shall extend the time. Upon failure to commence such action within the time prescribed therefor, the clerk shall order a cancellation of such note. If any person shall wantonly or maliciously or without reasonable cause procure such notation to be entered upon the registry of titles, having the effect of a cloud upon the registered owner's title, he shall be liable for all damages the owner may suffer thereby.
N.C. Gen. Stat. § 43-19