f your landlord does not provide habitable housing under local and state housing codes, a court would probably conclude that you have been “constructively evicted;” this means that the landlord, by supplying unlivable housing, has for all practical purposes “evicted” you, so you have no further responsibility for the rent. Texas law (Tex. Prop Code Ann. §§ 92.056, 92.0561) sets specific requirements for the procedures you must follow before moving out because of a major repair problem.
See the following process outlined in the statute cited:
(b) A landlord is liable to a tenant as provided by this subchapter if:
(1) the tenant has given the landlord notice to repair or remedy a condition by giving that notice to the person to whom or to the place where the tenant's rent is normally paid;
(2) the condition materially affects the physical health or safety of an ordinary tenant;
(3) the tenant has given the landlord a subsequent written notice to repair or remedy the condition after a reasonable time to repair or remedy the condition following the notice given under Subdivision (1) or the tenant has given the notice under Subdivision (1) by sending that notice by certified mail, return receipt requested, or by registered mail, or by another form of mail that allows tracking of delivery from the United States Postal Service or a private delivery service;
(4) the landlord has had a reasonable time to repair or remedy the condition after the landlord received the tenant's notice under Subdivision (1) and, if applicable, the tenant's subsequent notice under Subdivision (3);
(5) the landlord has not made a diligent effort to repair or remedy the condition after the landlord received the tenant's notice under Subdivision (1) and, if applicable, the tenant's notice under Subdivision (3); and
(6) the tenant was not delinquent in the payment of rent at the time any notice required by this subsection was given.
(c) For purposes of Subsection (b)(4) or (5), a landlord is considered to have received the tenant's notice when the landlord or the landlord's agent or employee has actually received the notice or when the United States Postal Service has attempted to deliver the notice to the landlord.
(d) For purposes of Subsection (b)(3) or (4), in determining whether a period of time is a reasonable time to repair or remedy a condition, there is a rebuttable presumption that seven days is a reasonable time. To rebut that presumption, the date on which the landlord received the tenant's notice, the severity and nature of the condition, and the reasonable availability of materials and labor and of utilities from a utility company must be considered.