An “Agent” is the person you name to make non-financial decisions for you when you are mentally incompetent to do so yourself. Can a Muslim’s Agent be a non-Muslim?
If the person becomes mentally incompetent, based on obligatory precaution his father or paternal grandfather must coordinate with the jurist (al-hakim al-Shari) to manage their affairs, and if both the father and paternal grandfather are not available, the jurist (al-hakim al-shari) becomes the legal guardian.