The places where I live are rife with crime, vandalism, and disruption, and it always turns out to begin with people who don't live here at all. They're just crashing at a friend's place.
The people who do get on federal assistance are the most stable and trustworthy. The people they drag into their lives are not eligible for that stuff, due to criminal records, mental illness, really intractable problems.
In the other place I lived, there were raucous parties, vandalised fixtures, scummy people just hanging around. One Holy Saturday I was about to leave for church, when someone was stabbed and left a trail of blood at my doorstep. There were numerous drug-related arrests. Once I came home around 8pm to meet a cop with an assault rifle, who advised me to hang back awhile because they were raiding the place across the way. I was eventually subpoenaed to a court case because I'd supposedly witnessed some dude damage property, who of course didn't live there.
The recertification process is full of checks on this behavior. Currently, they have a questionnaire with essay questions like, "What is fraud?" "What is the definition of a "visitor"?" and suchlike, because people just don't understand the difference between a temporary visitor and a live-in roommate who keeps their stuff there and sleeps on your couch or whatever.
It happens all the time, and in fact it's often the reason people become homeless in the first place, because they dragged over their loser friends, for a shower, a meal, some games, to crash on the couch, and the family of this person said to stop bringing drama and crime into our home. So the guy gets kicked out from an otherwise good home, because they are trying to keep the peace.
I was on the other end of this, in fact; when I was homeless, I would sometimes be invited over, you know, to shower, eat, crash or whatever, and my host would get in trouble, because I was not known and hadn't had a background check, or signed on to a lease or anything. Couch-surfers are often living in largesse of friends who informally vet them and those friends often risk eviction, because your typical lease agreement (not even Section 8, just a standard lease) prohibits long-term "visitors" who turn into "roommates" without legally signing on.
