Brother, I hope you can see the essence of the matter. Gambling is illegal at first. If your brother-in-law owes 300,000 yuan for gambling, you should call the police at the first time, so you don't have to bother being detained. Otherwise, no matter how much money you have, you can't fill the hole. Don't go to a loan company for a loan, because you don't want to think that your father-in-law's house should be in the countryside. Rural houses are built on collective land, and the state stipulates that buildings on collective land cannot be mortgaged, so even if your father-in-law's house is built, no bank will lend it to them. You can ask the real estate management office if you don't believe me. Self-built houses on collective land can't get real estate licenses ... you'd better think about it. ...