I don't really understand the question. Why is the Council involved in this 'eviction'? BTW If your friend was living with a resident landlord they don't actually need to get evicted anyway as they were only occupying on license.
What do the Council want the paperwork for? If its for rehousing, are you sure the letter doesn't ask for papers for everyone in your friends household and they have misinterpreted this as the physical household rather than the household for whom your friend is seeking housing?