I have about $14,000 in cash, and a car valued at $7,500 as an asset.

Think of a mechanic that is telling you to buy Car Model A over Car Model B... they are the ones in a position to know that Car Model B breaks down all the time, based on what they see rolling (or being towed) into their shop. 

I have a 3bed 1 bath with a 2 car detached garage.

My dad always insisted I wash and clean out my car before I get it Inspected . “ a clean Car Will Pass inspection much easier than a dirty one “ my dad would say .

I googled and something is mentioned aboutReturning  (Lesee) Non Employee in relation to like cars =LIt dawned on me gosh now are 'wholesalers' now representings properties for rent as 3rd parties or something, too?! 

At first glance I can look at this and automatically know this is high.

Anyone who doesn't show up during this window is automatically ruled out.I find that with this method, it saves me time and shows me who is respects my time by following instructions and showing up on schedule. 

The bank said we could do 80% LTV, I would then use the funds to pay off some personal debt (credit card/ car note) which is around $400 in payments a month and then have 25-30k left over to put as down payment on another SF rental.

Like others, I immediately got hooked and started listening to as my podcasts as I could (walking to work, on the train, in the car, etc.).

So what we do have is their driver's licenses and SSNs for all 4, one employer (military base), cell numbers for 3 of the tenants as well as a number to a new business the step father started (I saw the number on his car; no actual location or address exists for this new business that they likely operate from their mobile).Thank you for the suggestion on the collection service and for all your feedback.