Why and what is a Guardian?
A guardian may be appointed to manage the financial affairs of a person at significant risk of harm because of a "demonstrated inability to adequately manage property or financial affairs. " A guardian may be appointed to make healthcare and other non-financial decisions for a person at significant risk of harm because of a "demonstrated inability to adequately provide for nutrition, health, housing or physical safety." (The quoted language is from the Washington State law, Revised Code of Washington 11.88.010.)
If you need more information regarding Guardianships, look to Washington LawHelp, a free guide to help people with their legal problems.