I purchased a flat from my income in the name of my wife. I invited my mother and brother to stay there. I sponsored my brother for a course and paid for all expenses so that he can get a good job. During this period I paid for their all expenses. We do not normally live there but we have one bedroom for us. I have been asking my brother to move to another place since he is working now. It is now 19 years since he is in my flat and not moving out. He has married now and have a child. Mother sides with him. I offered him adequate amount so that he can settle but he wants that I should buy a flat for him which is beyond my means. He does not accept any relative to mediate. What should I do?