The equity rich cash poor problem is one I was faced with as well because I put it all into our apartment buildings.

To buy a BIG property today, you will need to take on extreme leverage, make a big bet, convince mulitple other people to hand you hundreds of thousands or millions of dollars, and then you have to be right, inside of a 3-5 year timebox, about your projections, supply, demand, expenses, and cap rates. 

After having some poor tenants over the years I'm much more picky with who I rent too.

As Brie mentioned, you can not deny tenants because of their vouchers.There are other subsidies that you could look into besides CHA.I bet @Mark Ainley or @Jared Kott could provide some better context than me around the subject.

Eliminating parking requirement is making poor parking situation worse.  

There is very poor response for the rental and many of the homes are lying around for rental for 2+ months.

Over a week is crazy for an outage unless we are talking hurricane, tornado or fire.I am betting it is internal to the site.

But the 5% that go to foreclosure are often homes in very poor condition or sometimes worthless strips of vacant land. 

To avoid going through the same poor experience, keep reading.Even if someone gives you a referral here, do NOT make the mistake of assuming that the PMC will meet your expectations, just because they met the expectations of the referral source.In our experience, the #1 mistake owners make when selecting a Property Management Company (PMC) is ASSUMING instead of CONFIRMING.It's often a case of not doing enough research, as they don't know what they don't know!

Even a poor score isn't an automatic disqualify for me.