Found it
http://nymag.com/daily/intelligencer/2015/05/grim-racist-methods-of-one-brooklyn-landlord.html
it's exaggerated but I don't doubt some of those methods prolly bein used.
It's infuriating. People in my own fam fell for that back in the day. Not the sign in the street but lowball offers n shit.
The lack of financial literacy that typically comes with generations of ur fam having money n knowing how to keep/grow is helping keep us in a disadvantaged position. Even when/if ur no longer poor, if u don't know how somethin should be valued or when an opportunistic greedy figure is doin u foul, ur gonna be taken advantage of at every turn.