Annoying neighbors

Christina • Blah!
This couple with Young child a little under a year constantly fights. Several of the other tenants have complained against them. This is becoming bad to the point where their constant fighting keeps us up at night, my daughter takes a very long time to go to sleep. The cops have been called several times and nothing has been done. The constant slamming of doors and fist fights in the hallway are becoming almost an hourly thing. The lanlord does absolutely  nothing. I feel the only way to escape this is to move. I don't think it's fair that I have to move from my place because nothing is being done. Several other tenants have moved because of this. Anyone know how I can avoid breaking my lease to move to get this matter resolved?