He needs some care with cleaning, sheets changed and some meal prep. Transporting to medical appointments. He’s in a wheel chair but can transfer form chair to bed with support. Or chair to car. Transfer to chair in shower. I live in Lakewood Colorado
Are you not just a family member/friend helping someone?
Are you expecting payment for your help?
If so that's something to discuss with ex hubby or your son.
Don't see why you would need anything, if your just caregiving.
Best of luck