Relationships are everything in this type of situation because this isn't typically an off the shelf product.

They are semi-permanent housing and have a fairly short shelf life.

The return on cash is infinite.

Good evening,Note: This is part of my learning about new things so I'll keep some homes on the shelf, so to speak, just to see what happens with them.

Reminds me of someone who is considering the purchase of an off-the-shelf, do-it-yourself brain surgery kit via a GoToMeeting video.

Roughly:Purchase price $70kRehab: Estimated $35k, Actual $50kRent: Estimated $1320/mo, Actual $1400 (was able to raise the rent to $1500 within a year)After Rehab Value: Estimated $120k, Actual appraisal $150kEstimated Cash on Cash 10.3%; Actual = ~infinite (because the loan was for as much as I had into the property)During my analysis, I was evaluating the estimated CoC in relation to other investments (bonds, stocks, stock options).  10% is an okay number but not really better than the stock market.  

Return rate will be infinite! 

There are an infinite number of scenarios where people might be motivated enough to take the discounted offers.

Each person was provided with a kitchen cupboard and their own shelf in the refrigerator. 

If you look at your return on cash invested you are doing very well (zero in so infinite return).