I have shown units in there and some of my clients concerns was the amount of renters in there as well.
Americorp Real Estate
Brokers Associate, e-PRO
The issues in that unit are probably just in that unit, but if you had an agent show you the unit ask him/her to check. The manager in that building is a bit of an A__ however.
The main 'issue' with the building is that the % of owner occupancy is about 50% so none of the big banks will make loans in it, but there are plenty of smaller banks that will.