I'd rather lease up the empty unit myself then have the seller get any warm body in there.Why is the seller offering financing at pretty much bank rates?

Consider attempting to repair it yourself.

We are attempting to do it ourselves this time.I've been told to verify credit by contacting at least 3 of their creditors and seeing their payment history. 

It is clearly just an attempt to be able to claim he was right later.It is like me predicting the Yankees will win a world series in the coming years.

I've attempted on a few occasions, ultimately none closed.

I am attempting to add some reality to your expectations.

To start, I’m attempting to purchase my first multi family property.

I attempted to get an FHA loan  with putting 3.5 percent down however I was told by my bank (Navy Federal) that FHA loans only cover SFR and Multifamily units and not triplex or 4 plexs.

What if the market there was not good and I could not sell the house at 120K in the future e.g. 5 yearsSince it is my first attempt of long distance investment, I would like to be more cautious and would like to have a second set of eye on my math.

I told her that a housing court judge would laugh at me if I attempted to evict for such a silly reason.