My uncle rented out half of his duplex in Pittsburgh to a couple who just quit paying their rent. When he moved to evict them Family Legal Aid gave them a free attorney (my uncle had to pay for his). This dragged on and on and they ended up living there close to 2 years for free. Eventually they moved out voluntarily and for other reasons...the legal system made no effort to force them to go. And they never paid the back rent or utilities.
After regaining control of the place my uncle found evidence of massive drug activities going on in there. Oh, and the deadbeat family had some ties to a Democrat member of the City Council. I’m sure that did not help matters.
That’s Pittsburgh.