Posted this in the rookie fb page but got no traction. 

Given units could be 500-2,000 sq/ft, there is no good way to estimate the cost per unit. 

I have searched online and found no company or market for this type of transaction.

However you've collected your fee since its easy to direct buyers how to buy the homes in markets where there's no barriers and hundreds are available at any given time, and the buyer feels like they accomplished something despite sitting on real estate that will never generate real gains. 

Wholesalers have basically no control.  

Worse they can say is no, but you hopefully will find out what you need to do to get accepted whey you re-apply.  

I meet the requirements, which are: 1) More than 640 credit score. 2) No missed payments 3) No second mortgages 4) did not use a down payment assistance program to buy the home.  

That means their overhead is way lower, so they have no pressure to increase rate to what you will need to get to cash flow. 

You then go about finding a new tenant A and once that tenant is in place, tenant A is no longer responsible for rent. 

No the spelling is Crown Lending Service, Peter Sirico.