[unholy_mess]

You are both a conservator AND a guardian? Do you know if you are full or partial guardian? I think laws vary somewhat by state, but to the best of my understanding, a full guardian has rights over basically all decisions regarding his well-being (including medical care, placement, finances, etc.). A partial guardian would have specific areas over which he/she would have control (such as just medical care). But I think the best thing to do would be to give the mental health center in the area and talk with a social worker/case worker or call a local lawyer. They'll be able to help give you specifics on what you can and cannot do for him.