Janie,
Please explain this line: "We have folks among us with parents in similar condition to mine".   It sounds as if you work in a seniors home or something similar to this?

My first thoughts are, find a babysitter (if he needs one) and leave him at home. He knowns what is required of him. If he can't meet the demands that you have to give in or he has to.   I may sound a bit cruel but not knowing all the details I have to guess a bit. If he is competent than he has a right to make decisions.
Beer (adrien)