((a)) ** PMI not required** Nothing in this chapter shall be construed to impose any requirement for private mortgage insurance in connection with a residential mortgage transaction.

((b)) ** No preclusion of cancellation or termination agreements** Nothing in this chapter shall be construed to preclude cancellation or termination, by agreement between a mortgagor and the holder of the mortgage, of a requirement for private mortgage insurance in connection with a residential mortgage transaction before the cancellation or termination date established by this chapter for the mortgage.