Notwithstanding G.S. 135-8(i)(2), the complete withdrawal by a charter school that is under an approved installment payment plan shall be the date of the Board of Trustees approval of the installment payment plan. All provisions of this Article relating to the complete withdrawal of an employer from the Retirement System shall be applicable to the charter school as of that date.
The Retirement System shall have a lien upon the real property of a charter school that has received approval under this subsection from the Board of Trustees to pay the lump sum amount required under G.S. 135-8(i)(6) on installment at the time that the installment agreement is entered into and in the amount of the total withdrawal liability owed by the charter school. This lien shall attach to the real property upon the approval of the installment payment plan by the Board of Trustees and shall be perfected upon filing in the office of the clerk of superior court in each county in which the real property is situated. The priority of the lien shall be superior to all nongovernmental liens and rights, whether such liens and rights are prior or subsequent to the lien. The Retirement System may enforce the lien by judicial foreclosure as provided in Article 29A of Chapter 1 of the General Statutes.
N.C. Gen. Stat. § 135-5.3