Tex. Prop. Code § 62.023

If requested by the buyer, the buyer's authorized agent, or the escrow agent for the commercial real estate transaction, the seller of commercial real estate and the broker representing the seller shall provide to the requesting party before the closing of the transaction a written affidavit identifying each broker with whom the affiant knows or believes the seller or the seller's authorized agent has signed a commission agreement under which a commission is claimed or earned and has not been paid.