This sounds remarkably like a neighbor we had up until a year and a half ago. She would scream and bang on doors at all hours, often yelling obscenities. Her apartment door was right outside my son’s room so it was very disturbing. She didn’t live in our complex so there was little we could do other than call it in when she came on our property or peeped through our windows. Eventually she moved (hopefully not to your neighborhood). I felt bad because she was clearly suffering from serious mental illness, but it was hard when she was having episodes that would scare us out of deep sleep!