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Thinking outside the box, what're some common/uncommon concessions that I might be able to work in(or out) to a loan?

they know they owe tax's  its not a mystery.

I currently put in an offer on a condo but if the sale doesn't go through then I can't use that address on my LLC application; so I guess I have to wait for the sale to go through and then transfer the title to the LLC...unless I setup a PO Box in that state and use that for the LLC address on the application for now?

Im an out of the box thinker.. big dreamer ...and a go getter type!!  

The process you outlined will definitely help to alleviate a lot of the mystery and fear around failed title V's.

Is it worth pushing our budget to the max to replace, or will an appraiser just check the box that there is central heat/air? 

I don't know if you have a Big Box store card if there are advantages there. 

With non-prime (or non-QM), which means you don't fit in the nice and neat boxes of prime lending, you will have to pay a premium, around 200 basis points higher than 3.8%.