he doesn't have a tenancy, so may be a lodger (even if he pays no rent) - lodgers have no rights!!!! he may also claim that he is a dependent - but they need to be spouses or children......and he is neither. he does not have a leg to stand on and you can hoof him out at the first opportunity. tell him to go and see a lawyer (i bet he cannot afford one and he will get no legal aid), or simply wait until he leaves the property to get food/go out and get in there and change the locks. and take a polaroid for us all to see his face. that would be nice! anyways, the upshot is, whatever story he comes up with will not be worth the loo paper it is written on and he has no right to stay in the house. as such, you can get in there, change the locks and call the police if he attempts to get back in - and press charges if he damages or takes anything. take photos of all properties before doing anything so you have proof of what is in the house and try to cover as many bases as you can. good luck x