Location and the size of it

Mold on the tiles in the bathroom, sign of water damage on the wall in one of the bedrooms. We were not able to use one of the bedrooms as it we could here the traffic and people from the street. Turned out that where the AC unit was in that room there was no solid wall just one wood panel with holes so the AC can air in there. White walls could use a layer of paint, they looked quite dirty. Elevator in the house is quite hectic but this is due to the age of the building. One mattress was turned upside down and it was very uncomfortable to sleep on it. When we turned it back we relized it that it was a blood stain on it so instead if changing it they just turned it around……..