My sister lost her job a few months ago and had to take a lesser paying job. At that time, she contacted her apartment manager and explained her situation and asked if they could transfer her to a smaller apartemtn, which would in turn, lessen the rent. Management offered to lower the rent in her present apartment and of course she accepted. She did not get this in writing. She has now paid the lesser rent for about 4-5 months. She has been an excellent tenant from the beginning with never being late on her rent. All this time management has accepted the rent and she has never received any sort of notice or contact from them regarding her rent. A couple of days ago, she came home from work and found a notice of eviction on her door stating that she must pay the back rent of the difference between the old rental amount and the new one she was given plus late charges. She immediately contacted her management office and was told that a new company had bought them out and had done an audit and discovered her lessened rent and were now demanding it to be paid in full. In this conversation, the assistant manager told her that "it was partly their fault" that all this had occurred. My sister is a single woman with many health problems and cannot afford the back rent, to move, or legal fees. What rights does she have in this matter?