Regulated lenders are exempt from all limitations on the rate of interest which they may charge and are further exempt from the operation and effect of all usury statutes, except as is otherwise provided in § 54-3-14. Regulated lenders and their assignees are further exempt from the prohibition, operation, and effect of § 15-17-39, and regulated lenders and their assignees may recover reasonable attorney's fees in the case of default of payment if provided for in the note, bond, mortgage, or other evidence of debt.
SDCL 54-3-13