I have invested my past 12 years of earnings in a house property (including land), which unfortunately as I was abroad i sent the money to my father to buy the land and build the house. Which he built in his name. Now the land and the house are in his name. He threatens me to give it away to my sisters. I am the coapplicant to the loan taken for that house. I have been paying EMI for the last 6 years and have 3 more years to go. Please advice me.