https://www.ncleg.net/EnactedLegislation/Statutes/PDF/ByArticle/Chapter_44A/Article_2.pdf
44A-12, filing claims of lien on real property
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(b) Time of Filing. – Claims of lien on real property may be filed at any time after the maturity of the obligation secured thereby but not later than 120 days after the last furnishing of labor or materials at the site of the improvement by the person claiming the lien.
