Texas Estates Code - EST § 1252.051. Appointment and Qualification of Nonresident Guardian

(1) a court of competent jurisdiction in the geographical jurisdiction in which the nonresident resides appointed the nonresident guardian;

(2) the nonresident is qualified as guardian or as a fiduciary legal representative by any name known in the foreign jurisdiction of the property or estate of the ward located in the jurisdiction of the foreign court;  and

(3) the nonresident, with the written application for appointment, files in the county court of a county of this state in which all or part of the nonresident ward's estate is located a complete transcript of the proceedings from the records of the court in which the nonresident applicant was appointed.

(1) show the applicant's appointment and qualification as guardian or other fiduciary legal representative of the ward's property or estate;

(2) be certified to and attested by the clerk of the foreign court or the court officer charged by law with custody of the court records, under the court seal, if any;  and

(3) have attached a certificate of the judge, chief justice, or presiding magistrate of the foreign court certifying that the attestation of the clerk or legal custodian of the court records is in correct form.