Sec. 14. A conveyance of land by an attorney in fact under IC 30-5-3-3 is not effective unless the attorney in fact is empowered to make the conveyance under a power of attorney that:
(1) is executed or signed by the principal (as defined in IC 30-5-2-8); and
(2) has an acknowledgment (as defined in IC 33-42-0.5-2) or a proof (as defined in and permitted under IC 32-21-2).