The younger brother buys a house with a down payment, and the younger brother can get a loan. The two brothers have nothing to do with each other, and my brother will not help him repay. Not if my brother lends money to my brother for a down payment. The down payment for buying a house must be the family's own funds. If it is verified that the source of the down payment is borrowing, raising funds to cross the bridge or borrowing from others, it is strictly forbidden to enter.