Update: Maintenance just informed me that the men have moved out and the apartment the men lived in is now empty! I'm still waiting to hear from the landlord but it's over! Hooray! (well, let's hope the men don't come back for a "social visit").

Thank you everyone who followed this post. It gave me so much comfort when I was all alone dealing with this in an unfamiliar city far from where I used to live. A special thank you to PML for your prayers. It did take some time, as you knew, but the prayers were finally answered! Good triumphed over evil!

I have all the empathy in the world for anyone experiencing a similar situation. Bad neighbors like I experience destroy the right of safety and happiness of their neighbors. While most people will never experience something as bad as this I'm sure the problem exists all over the world and many people need help because they are unequipped to deal with. This was all new to me, and quite a shock. I will post soon a simple formula that is based on what what was used here to rid this neighborhood of this awful situation.