Many people sign durable power of attorney document when there is a possibility they
may become ill or when there is a likelihood that they may suffer from an accident. Businesses and organizations do not allow the agent to have any decision making powers unless they have a written doctor's confirmation of your incompetency. Revocation power of attorney allows you to revoke a power of attorney document. It is your decision whether you have an agent or someone you trust make decisions for you. Power of attorney documents are only valid after you have signed them and the signature has been notarized.