If and when it does, and if it is a great deal, simply tell them the following: "No problem, I understand, I will simply sell to one of the other buyers waiting in line hoping you do not perform".

I assume there has to be a balloon payment of some kind, otherwise you would simply be calling owner financing lease/options?

If anyone local is looking to meet-up, network and/or simply bounce idea let me know!

But if I wanted to use a friend's money, and that friend didn't get involved in the transaction details, the rehab, and all of the work, would I simply treat that person like a bank and pay them some interest?

The guys you are talking to, simply don't want to help their competition, as they see it.

If you cannot verify previous owner gave rent concession then a court battle might be tough to win and just a letter to credit bureau would be what I would do.

I simply attach a statement to the return and file it.

So buyer 2 could simply contact the real owner.

If they don't buy the house then they've paid the mortgage down for you to simply put on the market at retail and cash-out or go out and find another tenant-buyer.

I see you're not putting much effort in studying, simply using BP to get answers for to very simple elementary questions.