End of life planning?

I'm not really sure where to begin

Father is elderly, living independently on social security. He rents and has no assets that I know of. I'm concerned that he might have debt he hasn't told me about and I'm not sure what happens with that when he passes.

I am out of state, my income is pretty low so I'm not sure how much I can help financially. He is starting to need help with cleaning, laundry, meals. He may need help getting to some doctor's appointments. I would like to have someone come in once a week to help. Not sure what I'm looking for. He used a service before where they did light cleaning, laundry, and checked in on him. I don't think they did meals. He was able to pay for it, but apparently it was difficult to have people come to where he lives, because it's too far. So maybe there's another organization that can be contacted? He's not willing to divulge.

My concerns are also having legal documents in place. I understand that I need to have a health care proxy form, living will, regular will, funeral arrangements. I'm not sure what else set up. I asked him if he has any of these and he was dismissive.