@jellybeansforbreakfast’e post is the best here
If he has not served you notice then you can stay put and he’ll have to serve you notice and it starts from there
If you don’t leave, he’ll have to evict you through the courts, a process that will take months and months minimum
It won’t even come to that
He can’t deduct unpaid rent from the deposit
You don’t need to let another living soul into your home for you don’t want to
If I were you, I’d do my homework with Shelter, and they will confirm all this.
Then I’d get a letter written to him that explains exactly what the rights here are, that there will be no further viewings of any kind until you leave
He hasn’t served notice properly so would have to do this
His ONLY chance here is for him to stop being a dick and hope that you find somewhere quickly and he lets you go as soon as you need to
Because it’s going to really fuck up his life if he has to force you to go.
The couple of weeks rent he’d ‘lose’ to you would pale into insignificance when it comes to legal fees etc.
You have all the powers here
Flex a little!