Texas Estates Code - EST § 1055.001. Standing to Commence or Contest Proceeding

(1) commence a guardianship proceeding, including a proceeding for complete restoration of a ward's capacity or modification of a ward's guardianship;  or

(2) appear and contest a guardianship proceeding or the appointment of a particular person as guardian.

(1) file an application to create a guardianship or for the appointment of a guardian for the proposed ward or incapacitated person;

(2) contest the creation of a guardianship for the proposed ward or incapacitated person;

(3) contest the appointment of a person as a guardian of the proposed ward or incapacitated person;

(4) contest an application for complete restoration of a ward's capacity or modification of a ward's guardianship;  or

(5) file a motion or complaint to request the removal of a guardian or contest the request for removal of a guardian.