In the case of an interest created under the law of intestate succession or an interest created by will, other than an interest in a testamentary trust:
(1) a disclaimer must be delivered to the personal representative of the decedent's estate; or
(2) if no personal representative is then serving, a disclaimer must be filed in the official public records of any county in which the decedent:
(A) was domiciled on the date of the decedent's death; or
(B) owned real property.
Official text of the Texas Property Code as published by the Texas Legislative Council.