Legal Question in Consumer Law in Illinois

Depends on what you need to do. For example, if you want to sell your home and both you and he need to sign the papers, but he is unable because of his condition, you would need a POA to sign for him. If he is that incapacitated that the POA could be invalid (you must be able to form the intent to grant the power) you may actually need to go farther and have yourself declared his guardian; then you would have the power by virtue of the court order.