They are lending to people who are so desperate they will pay 16+% for the loan.  

For property management, I have concerns on them actually adding value for what I am paying them for.

Buyer paid for about a year and a half and then stopped paying. 

@Robert Brock, I guess my advice is not really any different than I would say to someone wanting to be a residential wholesaler: you need to add value to the transaction.Often times, having the deal tied up is the value, but more often then not, in my limited experience with commercial wholesalers and residential, the wholesaler has no idea what someone will actually pay, so they tie up a deal at too high a price and then add their fee that turns a bad investment into a horrible investment. 

Another option is to invest in the market instead of paying down a mortgage.

Things they did bad which I wish I had asked more information about:Never involved in the screening of tenantsThey recommended keys for cash by waiving the rent amount buy only collecting fees which they would get not meThe cost to evict is 750-950 yet other companies told me they will include eviction in the priceThe tenant didnt pay in full last month and I was the one calling out to them and asking questions then a few days later I get an email saying something happened with the tenant and they are investigating.You get passed from person to person every week or so.No one told me when the construction was complete and so the house was ready for a week and the post to zillow and other sites was not done.It took them another week to take pictures and then another week to upload it.I was paying 200 dollar a month electric bills while the house was vacant because they left the AC running in the empty property.

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.

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

They are essentially giving the property to you at fair market price, so someone is going to need to pay taxes on that fair market price.

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