First, keep times and dates that all these things are happening. Second, call the police and report these kinds of things so there is a record of them in the legal sense. Third, make sure that you are reporting each and every one of these instances to your apartment management. Fourth, make sure that you are documenting these instances with pictures.
That's a good start. And if the apartments won't do anything still? Well, then it's time to call the agency in your state that monitors the apartments.
