This doesn't sound like my kind of neighborhood, so I don't live there. Places change, that's the risk of any real estate (unless you can afford large tracts of land, in which case only the EPA can seize it).
I'll be the first to grant that the free market is far from perfect. However, I think most of the time it beats a bureaucracy trying to do what's best for the "common good."
Note that a free market also means being able to rent to whomever you want. We are pretty far from having any kind of free market these days.
The right to rent to anyone you want should also include the right to not rent to whoever you want. Sadly, this is not the case.