Can a Ledgers franchisee revoke the power of attorney granted to the franchisor?

For value received, Franchisee hereby irrevocably appoints Franchisor as Franchisee's attorney-in-fact, to act in Franchisee's place, for the purpose of assigning any Listings. This appointment gives to us full power to receive, transfer or assign to us or our designee or take any other actions required of Franchisee under the Agreement. Franchisee grants Franchisor full authority to act in any manner proper or necessary to the exercise of the foregoing powers, including full power of substitution and execution or completion of any documents required or requested by any telephone or other company to transfer such Listings and Franchisee ratifies every act that Franchisor may lawfully perform in exercising those powers. This power of attorney shall be effective for a period of two (2) years from the date of expiration, cancellation or termination of Franchisee's rights under the Agreement for any reason. Franchisee declares this power of attorney to be irrevocable and renounces all rights to revoke it or to appoint another person to perform the acts referred to in this instrument. This power of attorney shall not be affected by the subsequent incapacity of Franchisee. This power is created to secure performance of a duty to Franchisor and is for consideration.

Source: Item 22 — CONTRACTS (FDD page 46)