I would like to know what the landlord’s responsibilities and obligations are in the case of one of his tenants in an HMO being taken following dramatic scenes by the police and mental health team and then being sectioned. This tenant had not paid rent for some months and eventually the landlord said he did not want this tenant back. The tenant has now entered the property while the others were out, so obviously still holds a key, and shows signs of wanting to move back in, so has been released. I have asked the landlord repeatedly to change the lock on the entrance to the property but he refuses. If other tenants personal safety is at risk, how do we force change of lock?