If you do not have a valid power of attorney document and you become ill or incapacitated, the court may step in to determine who will make decisions on your behalf. The process is similar to when an individual dies without a will and, in the same way, can be costly, time-consuming, and emotionally draining for all those involved. The court may take steps to establish a conservatorship or guardianship, appointing another individual to make medical and financial decisions on your behalf.