Texas Estates Code - EST § 113.209. Discharge from Claims

(a) Payment made in accordance with Section 113.202, 113.203, 113.204, 113.205, or 113.207 discharges the financial institution from all claims for those amounts paid regardless of whether the payment is consistent with the beneficial ownership of the account between parties, P.O.D. payees, or beneficiaries, or their successors.

(b) The protection provided by Subsection (a) does not extend to payments made after a financial institution receives, from any party able to request present payment, written notice to the effect that withdrawals in accordance with the terms of the account should not be permitted.  Unless the notice is withdrawn by the person giving the notice, the successor of a deceased party must concur in a demand for withdrawal for the financial institution to be protected under Subsection (a).

(c) No notice, other than the notice described by Subsection (b), or any other information shown to have been available to a financial institution affects the institution's right to the protection provided by Subsection (a).

(d) The protection provided by Subsection (a) does not affect the rights of parties in disputes between the parties or the parties' successors concerning the beneficial ownership of funds in, or withdrawn from, multiple-party accounts.