My father's home is a three-storeyed building. There are three tenants who reside without paying any rent. One of them is a rogue tenant who is the son of the tenant with whom there was a lease agreement and the tenure was completed 7 years ago. Two other tenants used to work as servants and my father made a mistake by having no written agreement with them. They refuse to leave saying that they should be paid some money. I had politely requested one of them to leave but none have left. We are currently in a financial crisis and cannot afford much money. Kindly suggest what course of action we must take to evict these three tenants.