Property issue

I am 35 years old. my father is mentally not well and also getting old. he has a property which has gone in redevelopment and is not developed. now he has got the flat and is staying their. but the builder has not given any agreement papers yet. my father only has allotment letter with him. the light bill has started coming in my fathers name and also the maintenance bill is coming in my fathers name. so is it possible to make property papers to transfer the property in my name. the reason to do so is be cos my father has a older brother, whose eyes are on this property and he knows that my father mental state is not well so he might use that to do something. so to avoid that problem. i want to get the property transferred on my name. so is it possible to do so with just allotment letter and what is the procedure to do so or what else papers will be needed to do so.