N.C. Gen. Stat. § 75-18

Although the lender and other persons enumerated in G.S. 75-17 may not specify or designate as a condition precedent a particular insurance company or agent, those persons, firms, or corporations engaged in lending money may approve the insurer selected by the borrower on a reasonable, nondiscriminatory basis, related to the solvency of the company and the type and provisions of policy coverage.