Well is it true that the rental would be a lot more if you were not there? Because a court might put a figure on the lost benefit for him.Yet he goes on about how much more rental potential if I moved out. I do everything with regard to tenants. Generally they are short term during study term. I advertise, respond to emails, meet prospective tenants, do all the cleaning of rental area, wash duvets et when a change over, deal with any issues that arise and so on. He does zilch. So I think I earn my keep!!
Those tenants don't even sound like rent a room to me. Sounds more like shot term student letting.