An otherwise valid transfer on death deed is void as to a subsequent grantee of an interest in real property that is conveyed by the transferor during the transferor's lifetime after the transfer on death deed is executed and recorded if:
(1) a valid instrument conveying the interest or a memorandum sufficient to give notice of the conveyance of the interest is recorded in the deed records in the county clerk's office of the same county in which the transfer on death deed is recorded; and
(2) the recording of the instrument or memorandum occurs before the transferor's death.
Official text of the Texas Estates Code as published by the Texas Legislative Council.