Texas Property Code - PROP § 82.118. Service of Process on Unit Owners in Certain Municipalities;  Change of Address Required

(a) A unit owner of a condominium located wholly or partly in a municipality with a population of more than 1.9 million may be served with process by the municipality or the municipality's agent for a judicial or administrative proceeding initiated by the municipality and directly related to the unit owner's property interest in the condominium by serving the unit owner at the unit owner's last known address, according to the records of the appraisal district in which the condominium is located, by any means permitted by Rule 21a, Texas Rules of Civil Procedure.

(b) Notwithstanding Subsection (a), a unit owner may not offer proof in the judicial or administrative proceeding, or in a subsequent related proceeding, that otherwise proper service by mail of the notice was not received not later than three days after the date the notice was deposited in a post office or official depository under the care and custody of the United States Postal Service.

(c) Not later than the 90th day after the date a unit owner changes the unit owner's mailing address, the owner must provide written notice of the owner's new address to the appraisal district in which the condominium is located.