Thank you for your question
My name is Clare
I shall do my best to help you but I need some further information first
Does your father still have mental capacity?
I am afraid that it is not that simple a process in the UK.
You can create the documentation online if you wish
The details are here
But you will have to Give Notice of your applictaion and apply to Register it.
However you can leave that in the hands of a Solicitor if you wish.
You will also need to liaise with his GP to get the medical form signed.
I hope that this is of assistance - please ask if you need further details