> It's very hard to work around human nature and the whole "why am I paying rent like a sucker when the drug addicts on the street are getting free apartments?"

Easy fix: Give them a free apartment, too. Let them see what it's like. If they do better there than paying rent or mortgage, great. But I bet they won't last more than a day or two before turning that key back in. They think a free apartment is some great thing to have, as if their neighbors won't be all the people they didn't want to be around in the first place.