I quadruple checked with the loan originator that they could give 80% on an invesmtent duplex and he assured me they could.

One thing beyond the normal assurances that is a "must have" as far as I'm concerned is that your QI should have segregated dual signatory FDIC insured accounts.  

I had businesses set up in S-Corps, C-Corps, and LLC's and when I heard about this, I asked my insurance agent if I'm also covered personally for liability and she assured me that she always do it, and it would be negligent of her if she forgot to cover me.

That they will still need to give first, last and security deposit I have spoken with a real estate Atty who has assured me that taking 10% will not violate Dodd Frank. 

Liens does not get our bills paid, it might be an assurance that we will get paid at time of sell - which could be 30-50 years from now, but how about our payroll next week?

In fact, most of them just want to hand the keys to someone and walk away.And let me assure you.

On the bright side My last 3 guests have left very nice notes assuring me they will use my house the next time they come to town.  

I trust you are handling this but I need some assurance as it is negatively impacting my budget.

I assure you something Major will have it sometime and you will need cash reserves to be able to make the repairs.

Also, I work as a Quality Assurance Manager.