No provision in a home loan or a loan for a mobile home, the evidence of indebtedness of a home loan, a real estate contract or an obligation secured by a real estate mortgage or other purchase contract requiring a penalty or premium for prepayment of an installment payment or prepayment of the balance of the indebtedness is enforceable. History: Laws 1980, ch. 64, § 9; 2009, ch. 151, § 1.