(a) A purchaser under a written contract for the sale of a one-family or two-family dwelling may require the seller to install smoke detectors for hearing-impaired persons if:
(1) the purchaser or a member of the purchaser's family who will reside in the dwelling is a hearing-impaired person;
(2) the purchaser provides written evidence of the hearing impairment signed by a licensed physician; and
(3) not later than the 10th day after the effective date of the contract, the purchaser requests in writing that the seller install smoke detectors for hearing-impaired persons and specifies the locations in the dwelling where the smoke detectors are to be installed.
(b) If the seller is required to install smoke detectors for hearing-impaired persons under Subsection (a), the seller and purchaser may agree:
(1) which party will bear the cost of installing the smoke detectors; and
(2) which brand of smoke detectors to install.
(c) The seller must install the smoke detectors not later than the closing date of the sale of the dwelling.
(d) A purchaser may terminate the contract to purchase the dwelling if the seller fails to install smoke detectors for hearing-impaired persons as required by this section.