Texas Tax Code - TAX § 42.016. Intervention in Appeal by Certain Persons

(1) owned the property at any time during the tax year at issue;

(2) leased the property at any time during the tax year at issue and the person filed the protest that resulted in the issuance of the order under appeal;  or

(3) is shown on the appraisal roll as the owner of the property or as a lessee authorized to file a protest and the person filed the protest that resulted in the issuance of the order under appeal.