I am subscribed to an institution that provides a good loan, and I pay them monthly until my savings with them reached (5000) dinars, in exchange for which they will give me a good loan of (20000) dinars, and I will repay them (15000) dinars as it is. It turned out that I need to buy a house not through a bank because it will be mortgaged to the institution. For example, (20000) dinars from the institution and (20000) cash from me to the homeowner, assuming the price of the house is (40000) dinars, and that the house will be mortgaged to the institution. When this was not possible, they gave me another option, which is to buy a share of a house from one of my first-degree relatives. Is it permissible for me to ask them to buy 50% of my brother's house, which will be registered in the land department? When they pay (20000) dinars to my brother, I will receive them from him, meaning my brother will give me the money, and my presence on the deed will be merely formal, while the house remains 100% owned by my brother in reality?