skjWelcome to the far side of realityPremium,ModHost:
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If you have not already, I would send a certified letter to apartment management notifying them of the problem. You need to create a "paper trail" of you trying to get the problem fixed. If they fail to fix the issue you will than be on much stronger legal ground to terminate your lease.
Here is a sample letter I found on clarkhoward.com
The foundations of character are built not by lecture, but by bricks of good example, laid day by day.