Tex. Estates Code § 752.106

The language conferring authority with respect to banking and other financial institution transactions in a statutory durable power of attorney empowers the attorney in fact or agent to:

(1) continue, modify, or terminate an account or other banking arrangement made by or on behalf of the principal;

(2) establish, modify, or terminate an account or other banking arrangement with a bank, trust company, savings and loan association, credit union, thrift company, brokerage firm, or other financial institution selected by the attorney in fact or agent;

(3) rent a safe deposit box or space in a vault;

(4) contract to procure other services available from a financial institution as the attorney in fact or agent considers desirable;

(5) withdraw by check, order, or otherwise money or property of the principal deposited with or left in the custody of a financial institution;

(6) receive bank statements, vouchers, notices, or similar documents from a financial institution and act with respect to those documents;

(7) enter a safe deposit box or vault and withdraw from or add to its contents;

(8) borrow money at an interest rate agreeable to the attorney in fact or agent and pledge as security the principal's property as necessary to borrow, pay, renew, or extend the time of payment of a debt of the principal;

(9) make, assign, draw, endorse, discount, guarantee, and negotiate promissory notes, bills of exchange, checks, drafts, or other negotiable or nonnegotiable paper of the principal, or payable to the principal or the principal's order to receive the cash or other proceeds of those transactions, to accept a draft drawn by a person on the principal, and to pay the principal when due;

(10) receive for the principal and act on a sight draft, warehouse receipt, or other negotiable or nonnegotiable instrument;

(11) apply for and receive letters of credit, credit cards, and traveler's checks from a financial institution and give an indemnity or other agreement in connection with letters of credit; and

(12) consent to an extension of the time of payment with respect to commercial paper or a financial transaction with a financial institution.