Because this is specifically a property Investment forum. If you start talking about ethics, or religion you drag the thread way off topic. While I have empathy for the tenants, it would seem they are establishing a pattern of behaviour thats likely to continue and degenerate. Therefore, it would be best to end the tenancy as soon as possible. Of course the Landlord should stick to the letter of the law and given a valid termination notice. Its obvious that the landlord inexperience was the cause of that.