I also wanted to add a few security cameras outside and in the common area.

It's called Fraud by Inducement.OP does not understand how most wholesalers work.. its common knowledge that wholesalers do not use full disclosure to secure contracts not all but most..  

Go there and tarp the roof , turn off the water and secure the property .

If this is a seller who merely doesn't want to accept an offer from a buyer who requires financing and you feel confident you can be approved for the loan, you can always write up the offer without a financing contingency and secure a loan before settlement.

Section 8 representatives will confirm the rent rate per house once a tenant is secured.

Bigger Pockets is an excellent resource for learning and connecting with experienced investors.Here’s a simple framework to analyze deals: Set Clear Investment Goals: Decide if you're looking for cash flow, appreciation, or both.

In our situation we have mid 7 figure unsecured line of credit we could stroke a check at anytime.. or move it to our 8 figure secured line.. our financing was already in place. 

If they don't have a social security number, then you can't run a credit/criminal background check, and they shouldn't be approved.You can't verify their identity.

I have put up security cameras out front because of the neighbors.  

I would focus on securing a deal, figuring out what type of financing you want to use, then go forward from there.