A Power of Attorney is a legal document that gives someone else the right to act on your behalf. Many people believe their families will be able to step in if something happens and they cannot make decisions for themselves. This isn't always true. With a continuing power of attorney for property you can name someone to perform financial duties such as paying bills. For personal care and health decisions, such as where you live, what you eat, or what medical care you will receive if you get sick or injured, you can name someone in a power of attorney for personal care.