If I gave my son power of attorney in living will can I still sell real estate by myself?
The Living Will generally becomes operative only when it is provided to your physician or health care provider AND you are incapable of making health care decisions for yourself, such as where you are permanently unconscious or terminally ill and unable to communicate. The powers granted to an agent in a living will include the power to voice and enforce the wishes you detailed in the living will.
Therefore, any legal actions you wish to take as a competent adult are not governed by the living will and its provisions. Only a general power of attorney form could be used to give someone else the authority to act for you in legal matters such as a real estate transaction.