Sometimes they forget to tell you that many tenants in Detroit don't pay (depending on the property manager skill and the type of tenant) - but taxes are very high in the city and so is insurance. 

I have spoken with them a few times, they are unconcerned, and happy to have me just pay the interest every month until it converts.

Property damage, excessive wear and tear, but paying, that PM has an incentive to look the other way, don't they. 

I reduced my responsibility to only taxes/insurance while the tenant buyer does the maintenance, pays utilities and makes monthly payments to me. 

SFR houses will only appraise based on comps.So unless someone was paying cash you can't get more than they appraise for.The camp ground is a different story.

Must pay well, she door dashes breakfast, lunch, dinner like clockwork.

People in 1981/1982 were angry they were paying 18% interest.

It looks good) I stumbled across someone locally who does it, but I'm sure you could find someone there if you or other out-of-town investors like the idea of paying a bit more for that level of security and obtain a remote monitoring source of the exterior of the properties.

My initial thought is that the developers may have gotten a much better deal than they would have otherwise given the clear limitations on the land's use.

You have to disclose all of this when you sell, so you will end up paying your plumber or discounting to your buyer.