How are you getting on OP? I've just popped in to correct something newspaper said. In short , that in the absence of PoA, you have no rights/standing whatsoever. That isn't correct.
Firstly, A deprivation of liberty order (dols) only applies in a hospital or care home environment. You can't request a 'dols' for someone in their own home. How are they deprived?
The key to all this is 'lacks ability.
Just as a PoA comes into play when a person 'lacks ability' then would a dols (dependant on where they are). What hospitals/social workers quite often omit from their advice, is that under dols, your fil must MUST be assigned what's called an RPR. A relevant persons representative.
An RPR can be anyone, neighbour, close friend or more usually son or daughter. The role of the RPR is to represent the individual in all 'best interest ' decisions. That in effect means you have the right to demand and see all medical records etc demand to be present in any meetings regards your fil welfare and absolutely be a party to the decisions regards his ongoing care. All the things a health and welfare PoA gives you.
So without going into things further at this stage, I would just say, please don't worry about PoA for health and welfare. You will have a legal standing if your fil is declared as lacking capacity. Any decision made for a 'lacks capacity' individual, must be made as a best interests decision, and the RPR Must be involved.
Just on a practical front, the situation with your fil is indeed very common. My advice would be to regularly ask for a capacity assessment. That's all you need. It's unrelated to diagnosis, and indeed it isn't just 'lacks capacity' but Lacks capacity in what?
Remember, your fil would absolutely be classed as 'vulnerable at this stage. Vulnerable to being taken advantage of financially, vulnerable to not remembering to eat or take medication, and clearly vulnerable to self neglect. It's the social worker who can advise you who 'owns' your fils capacity assessment, is he under the care of the hospital mh team? Who did his last capacity assessment and ask the SW if you can see it.
I do know how frustrating and upsetting some behaviours can be, but things like accusations re stealing is very very common in dementia patients and should be viewed as part of the illness. If indeed your fil is suffering from a dementia related illness, diagnosis will indeed help understanding of what your dealing with and what to expect in the coming months /years. Has he had a brain scan? and if not, I'd be jumping up and down to make that happen.
I trust you've let the SW/GP know your fil is now incontinent? Yes intervention needs to happen, but you have to ask the right questions to make it happen.
The question for you and your DH is, who wants to take the responsibility as your fils RPR? (Or just common sense equivalent as it stands at the moment). Social services, the nhs, will work better with you if one family member takes the lead.
In real terms, your fil may manage for a while in his own home with carers support. Personally, I'd encourage that for as long as possible. He clearly needs daily help with meals so chase the SW down on that one. Home support must meet his needs, so that includes daily meals and monitoring his personal hygiene etc.
7 days a week.
The only option after that would be going into care. Don't let SS Rush you into that. If he can manage with SS provided support at home, the law says that's what he should get.
PoA re finances is a whole separate kettle of fish.....to be frank, I'd be getting him to sign that now before he's declared 'lacking capacity'.
Once he's lost capacity, and a PoA isn't in place, you will have to apply to the court of protection (£400 a time) to get one. It also can take months. If you don't apply to the court of protection, SS will. That's when you lose any say in how your films estate is spent.
Sorry this is so long, but hope it helps.