@Matthew Grabarczyk If this is a good deal for your standards, why not put in an offer with contingencies (inspection, appraisal) then get a look at the rent roll, and the “schedule E” I believe, to see what the current owner is claiming on taxes.

Their fee is normally contingent and based on the amount they save in taxes.

You will get your earnest money back if there's inspection / mortgage contingency and there's a problem with the house.  

The seller will not entertain any contingencies saying one unit must be vacant for the sale to go through (they are family, and family friends of seller).

@Diandra Duncan, I would sign it, if you want the house, but only if you have a financing contingency too.  

Other things that can be done are offering a faster closing as well as the timeframe of contingencies if any.

I also would like it to have something along the lines of an inspection contingency in it so I could get out of a deal if need be.

Not being able to offer a no contingency contract being demanded in some markets16.

In my company we're Wholesaling virtually in 3 states so yes we are locking up the houses under contract without seeing them, we run our numbers and our offers are contingent on a walkthrough/inspection. 60% of the time we obtain pictures/video from the seller.

Repairs and CAPEX are very much contingent on the property and current condition.