Texas law generally requires the deposit (or an itemized list of deductions) back within 30 days of the tenant surrendering the property — there's no 60- or 90-day standard, and it isn't left open-ended or conditioned on the tenant remembering to request it.

Landlord-tenant relationships are primarily governed by the Texas Property Code — TRELA and TREC's standards govern real estate license holders' conduct, not the substantive landlord-tenant relationship itself, and the Business and Commerce Code covers different subject matter entirely.

A landlord generally has a duty to address a properly-noticed repair within a reasonable time — that duty isn't simply waived by a rent dispute, doesn't require the tenant to front material costs, and isn't limited only to repairs explicitly itemized in the lease.

Texas law creates a narrow statutory exception: a landlord may change the locks on a rent-delinquent tenant without a completed eviction, but only if the lease affirmatively authorizes it and the landlord follows strict notice and rekey requirements — including providing a way for the tenant to get a new key at any hour. It isn't an absolute ban, isn't notice-free, and simply filing for eviction doesn't itself authorize a lockout.