From a female point of view, I also have a younger brother. If I really tear down several suites, of course I want to help him. But whether to give him a house or not needs to be discussed with my husband before I can decide. After all, it's not my personal property. Of course, I believe my husband is very good. If this happens, my husband will definitely do his best to help his brother-in-law. ...
I think it is very important for people to have a clear view of right and wrong. Your mother has no correct view of right and wrong. Obviously, since you asked such a question, it means that your heart may be a little tangled, so make the right decision. I believe that if you have a sensible brother, your sister will try her best to help you. If it happens that your sister's family is not easy to get along with, it will really cause great trouble for your sister to ask for a house. Maybe my sister definitely wants to give it to my brother, but family conflicts may arise if the family does not agree. Finally, it may ruin your sister's marriage. So think more about your sister, and the point is to think about your face.
It is estimated that this mother may have the same idea, because she prefers boys to girls. Of course, it may also be because of family conditions. If it is really a matter of family conditions, I believe my sister and brother-in-law will spare no effort to help you. After all, it's their brother.