If you were both on the lease of the apartment then your roommate cannot do that. If your roommate is the leaseholder and then took you on as a roommate then she may ask you to leave But even that would be difficult once you have established residency. If there is no lease at all then your roommate has no more power than you do. So once again you donu2019t have a right to ask you to leave. The only way around this would be if one party was to get a restraining order from the court. Then the opposite party would have to leave otherwise they would be in violation of that restraining order. Which would result in jail. But even that would be difficult once you have established residency. If there is no lease at all then your roommate has no more power than you do. So once again you donu2019t have a right to ask you to leave. The only way around this would be if one party was to get a restraining order from the court. Then the opposite party would have to leave otherwise they would be in violation of that restraining order. Which would result in jail