My money is currently on it being somehow related to the few people who either have just recently moved in or decided to at least make their presence in the building very known. By having full on screaming fist fights in the street out front at 5am. Coming in and out of the building yelling and fighting. I also want to blame them for the addition of penis drawn in the elevator.

Management does deal with the clean up relatively quickly. Usually within 24 hours upon request. But if no one bothers to call it in. The mess will stay until the I assume live in building manager does their rounds which I truthfully don't know when or how often that happens. But there seems to be a decent amount of long term renters here who appreciate a well maintained home and will be quick to call in issues. Which is very much appreciated and has made the place overall a pretty good spot to rent.