Property problem between brother and sister

Sir/madam I am living in my father's house for the past three years my brother (youngest) living first floor with my mother and his wife.At first he was not married when I vacant to my father's house with my husband and children, with his and mother permission only I went to my father's house but when after his marriage he became rude and being to speak unwanted words with his wife and being to fight everyday with me about asking at first for Electricity and next for rent.I don't know what to do because my children school is near from my father's house and also I was giving my mother money when ever she ask for her expenses.I told him that I can Pay Electricity Bill for both of us monthly also but he is now creating more and more problems with his wife like not letting to fit AC , when some guest came to our house his wife is coming to fight with me ect.. I don't have any choice to go to another house because rent would be more near my children school... Please help me what I can do according to law for my father's property but it is in my mother name. She is not able to go against my brother she is silence...