Power of Attorney
Attorney in fact cannot convey property to himself.

California Probate Code Section 4264(c)
A power of attorney may not be construed to grant authority to an attorney-in-fact to perform any of the following acts unless expressly authorized in the power of attorney:
. . .
(c) Make or revoke a gift of the principal's property in trust or otherwise.

Shields v. Shields (1962) 200 Cal.App.2d 99, 101
A power of attorney conferring authority to sell, exchange, transfer or convey real property for the benefit of the principal does not authorize a conveyance as a gift or without substantial consideration [citations]; and a conveyance without the scope of the power conferred is void.

Estate of Stephens (2002) 28 Cal.4th 665 (Cal. Sup. Ct. 7/25/02)
"While Shirley had written authority from Austin in the form of a power of attorney, that document specified that she had only the power to sell, convey, and transfer his real property. By law, she lacked authority to convey the property to herself as a gift."