I’ve complained numerous times as well as other neighbors who have since moved out because of her smoking.

A lot of contractors cannot float or front money for any length of time and this will become an issue as you progress in the project if the GC is strapped for cash.Overall if you can get a lender, HUD consultant, and GC that have worked together on numerous deals together, your project has a much better chance of going smoother when you are in the rehab phase. 

I've found people numerous times on Craigslist who have hauled junk, including refrigerators, away for free for me.

They have the necessary systems in place to handle the numerous obstacles thrown at them through the life-cycle of the note.  

@Mark DiGioia there are numerous property management softwares out there that can help you collect your rent online as well as provide other property management features.

Since then the bank/Seller have asked for numerous extensions which we have given. 

I have taken out numerous mortgages in the pass and IF I even locked the rate, I was never charged a fee.

If the answer is that he was just putting it in the bank, I would explain how he could be secured by making the loan to me and collect higher interest on his money.I would also offer him one other tidbit that worked in numerous situations.

There are numerous ways to structure and protect each party.

Realize that anyone who might invest with you will have numerous other places they could invest.