(1) comply with the requirements of all applicable building and housing codes relative to health and safety;

(2) make all repairs reasonably necessary to maintain the premises in a fit and habitable condition; and

(3) Any defective condition of the premises which comes to the tenant’s attention, which the tenant has reason to believe is unknown to the landlord, and which the tenant has reason to believe is the duty of the landlord to repair, shall be reported by the tenant to the landlord as soon as practicable.

(b) The landlord and tenant may agree that the tenant perform the duties prescribed in Subsections (a)(1), (2) and (3) of this Section, but only if the transaction is entered in good faith.