two family dwelling. inherited from parents. sister and brother. brother is living on first floor. sister rents out the second floor and collects the rent. brother get none of that. this is fair. all expenses are shared. tax , insurance etc. brother maintains the property and repairs. does not ask for anything which is fair he lives there and is ok with this. sister wants him to pay 45.00 a month difference in rent amount. from 2001 until 2005. as of right now she is collecting more for the rent upstairs then what would be collected on the apartment where the brother lives. i guess the question is this. as a legal matter goes does this sound right and what can the sister do to either collect this money and can she file papers to get the brother out. what rights as half owner in this situation. she has never complained before but is now. he has lived there for 5 years.