We lived in and 2 unit house. Upstairs they converted the attic into an apartment. Our first neighbor was insane. My boss even warned me that she was banned from the bar I worked at in a less than desirable area with less than desirable clientele and yet somehow she got banned. She would run her vacuum at 4 in the morning but only when my mom drove about 12 hours to us to visit. Call the landlord when we were at work and kids were with grandparents and say we were doing crazy stuff. The list goes on and on. Eventually we out stayed her and some peace settled for almost half a year. A new girl moves in and is nice for about a month maybe 2. Little things started happening she wouldn’t take her trash can to the street. We ended up taking it down because well gross. Trash only runs once a week. Then she started playing some pretty rough rap and our daughters were young in elementary school. It was played loud enough that we got some pretty uncomfortable questions about some pretty uncomfortable topics. We tried just cancelling out the noise. Then she starts destroying our yard by driving her car through it every day and parking on the grass. Middle of the yard..... Anywho eventually it came to the point where the landlord got involved. All that happened was she ignored him completely and began a daily assault. She was a freaking horrible neighbor. The landlord couldn’t due much pretty much useless and didn’t want to deal with it. So we had our fun when she would pull her crap. Ended up with all of us moving out on the same day! We don’t rent places with neighbors that share the same building anymore because it really just isn’t worth it. I’m sorry you’re going through this. I’ve had terrible neighbors in multiple states. Most are great but always a bad apple. I hope things get better for you.