You should probably discuss the specifics offline with a local landlord/tenant lawyer who can advise you based on the specifics, so you avoid walking into any unnecessary liabilities as a result of an impulsive decision. Best of luck
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Generally, if you notify the landlord by certified mail, return receipt requested, about an issue in the rental property that is a threat to your health or safety, the landlord has a week from when they receive your letter (or notice of your letter) to fix the problem. If the landlord does not fix the problem, you may have the right to terminate your lease, sue the landlord for $500 plus one month's rent (plus actual damages, court costs and attorney's fees), and/or obtain a court order requiring the landlord to fix the problem. If the landlord knew there were problems before you moved in, you may also have claims for fraud and violations of the Texas Deceptive Trade Practices Act. You may want to consult with an attorney to determine if you have taken all the steps necessary to legally terminate your lease. Throughout this process, you should make sure you are current on your rent and continue to pay your rent on time until you move out of the unit, or else your landlord may have the right to evict you, regardless of the repair issues.
This answer is offered as a public service for general information only and should not be relied upon as legal advice.