D.C. sues property owners for forcing tenants to live in dangerous conditions. Violations include mold, uncollected trash, ...

One recalled a note from a neighbor claiming to be a doctor who was being kept up at night by their dog - there was just one problem.

"If you're neighbor doesn't behave in ways you want them to, the last thing you should do is get into a tit-for-tat battle with them," an expert told Newsweek.