Tex. Est. Code § 258.052
Current with legislation from the 2023 Regular and Special Sessions signed by the Governor as of November 21, 2023.
If an applicant described by Section 258.051(a) cannot, with reasonable diligence, ascertain the address of any of the testator's heirs, the court shall appoint an attorney ad litem to protect the interests of the testator's unknown heirs after an application for the probate of a will is made under Section 256.003(a).
Tex. Estates § 258.052