I don't suppose the struggling non state supported private renters whom you outbid to buy these houses, which they might otherwise have been able to afford to buy themselves, but who are now paying rent to some other landlord instead, are quite so enamored with your altruistic enterprise.
I actually lived in this multi unit property when I first bought it. My wife and I were newly married and buying a multi unit property qualified us for a 3.5% down payment which was much more management than >=10%. Also, I live in a rural part of America where property values are relatively stable because there's so much room to build. There are ample new homes available and new homes cost about $100 per sq ft. Existing homes are unable to rise above this except for extreme circumstances.