Tex. Est. Code § 456.003

Not later than the seventh business day after the date an eligible institution receives a copy of a written agreement under Section 456.002(a) or a statement from a personal representative under Section 456.002(b) and instructions from the lawyer identified in the agreement or statement, as applicable, regarding how to disburse the funds or close a trust or escrow account, the eligible institution shall disburse the funds and close the account in compliance with the instructions.