Mental Health Support

Contact your Area Agency on Aging, every county has one. Ask about an evaluation by an LCSW. If he is being separated from his assets, I think they will have some options with some legal basis, not only because the burden of his care could be shifted to the state. Elder abuse is a crime, financial exploitation of the elderly is a crime, reportable in every state though rules vary and every state has some kind of reporting system and agency for reporting. These things happen fast, just a couple days and an investigation will begin. They might have the power to examine financial goings on. I believe every state has an elder abuse hotline, search for it in your state.

Consider your own legal exposure. I have no idea where that would stand.