I'm a newbie, so I am overthinking everything out of fear and doubt.

Or maybe you will validate my fears.

It has been a stressful week worrying about my investment.... but I can't even imagine the stress and fear for the people that are in the middle of it.

Lots of fear out there means great opportunity.  

I don't want to jump to conclusions because I have no prior experience, but would this be a cause for concern or was he right to assuage my fears?

These men are, in a way, protected by not being caught in the act and the fear they lay out in the victims.

I use Concord title locally here in Tennessee, I fear I don't know enough about the companies in your area and have never worked up there.

I guess my biggest fear is finding the tenant. 

My guess is that the only thing keeping the potential investor from doing this is the fear that the house will sell to a different investor before the wholesale agent's contract with the seller expires.  

My fear is that the CAP rate value 80%LTV refinance won't be enough to cover the balloon.