My ex is currently residing at our family home owned by both of us. Our mortgage is currently in arrears 4 months. He hasn't paid anything since I last paid for it. I moved out in July due to family violence and drug use in those months. I paid the mortgage up until October and since then he hasn't paid anything. Recently, the house was raided by police and my house has become a storage place for stroll goods. Police have seized the goods. The bank is in the process of repossessing the house. I want to move back in and take over but, unfortunately, I have no cooperation from my ex to get back in the house and he has changed all the locks on me. What legal rights under Family Law do I have to get him out so I can avoid my house being taken from me?