They have been deniers of the dx and say it's just old age, when 3 doctors have said vascular dementia/alzheimers. He requires monitoring for his meds and because he falls. He is left alone during the day and is allowed to drive after being told by MD's not to. What can I do?
Did they take him legally? Wierd that he would voluntarily leave his home and you --unless stepdaughters convincing him you are over-reacting and nothing is wrong --which I don't doubt your assessment of the ALZ and dementia. He won't last long and will be begging to come home. Take this time for yourself to figure out how you will manage when he does return and make sure estate is in order. Consider your joint finances and how you can get some in home help when he returns when and if you need it, also, maybe AL or memory care facility and future costs.
Let us know what transpires.