Texas Estates Code - EST § 504.003. Procedures and Time Limits for Contesting Foreign Will

(a) The probate in this state of a foreign will probated or established in a jurisdiction other than the jurisdiction in which the testator was domiciled at the time of the testator's death may be contested in the manner that would apply if the testator had been domiciled in this state at the time of the testator's death.

(b) A foreign will admitted to ancillary probate in this state or filed in the deed records of any county of this state may be contested using the same procedures and within the same time limits applicable to the contest of a will admitted to original probate in this state.