I am afraid I have form in this type of case, and I feel for you very deeply.
My parents were quite wealthy thanks to my mum investing wisely. My mum, who was in poor health, was always showing me where she kept some folders in the house. She said that one day I would come into quite a bit of money but I would be careful with it.
Then a few years later she died. My dad met someone three months later and married her. At the solicitor’s meetings I and my brother were invited but the solicitors did not bring the money up. I just assumed I would not get this until my father died.
Then ( I won’t go into the reasons why) my father and I fell out and we didn’t speak for years ( let’s say he had been treating me badly). As a single mum I carried on struggling for years, until out of the blue I got a phone call from my dad. I put the phone down but my peacemaker son phoned him back. He wanted to give me the share of the money my mum left me and that I was due for since 2006. You see, when money is left, the solicitors trust the parent ( in this case) to do the right thing and distribute the money as per the deceased parent’s wishes ( of course my brother got his money in 2006 and tried to guilt me out of accepting my share). My father has carried on with this taking control of the wills tactic with my aunt’s will ( she told my son she had seen a solicitor before she had died and had left him some money yet he and several grandchildren she was enormously fond of) got nothing. Solicitors should stop assuming the senior family member is honest and keep those in receipt of inheritance up to date ( if underage at the time, at least inform them when of age and ring fence the money so that the father cannot use it).
Now that your father is threatening you with eviction the situation has become urgent and you will need to do some homework. I wonder if there are any documents in the house that may indicate which solicitors he uses. If not, do what muttley says and go to the citizen’s advice bureau. I am willing to bet that this would have been drawn up by a solicitors in your local town.
Also the citizens advice bureau can help you with his threats to throw you out - your rights, where to go from here.
I hope you can find your independence without this awful father ( as I have done). Years later my father (86 today) is still up to his own tricks, snubbing me from family events and laughing about it , and making my equally obnoxious brother sole executor of his will ( which I am pretty sure will cut me out)
All the best to you and please know that however dark your life may seem right now, there will someday be life at the end of the tunnel.