Mental Illness is a disease that needs to be treated. I would try to find out all I can about the parents compliancy with medication and history. I would see if there are services that can help the parent so they can be a better functioning care giver. I would try to assess the motivation of the parent for doing the work and see if there was services to change the motivation if it was not high. I would try to find out the type of meetings the parent had previously and how they went and try to see if I could approach it differently is its not ideal.