I got out of the military in July 2016 and I'am currently working with my uncle at Steel Plate Fabricators in Knoxville, TN as a assistant welder.

Should a fabricator be telling you when they are planning to add seems?

You then just have to install them, rather than fabricate them first then install. 

E certainly can be fabricated, if you don't get a copy from either the IRS (this is what lenders often do, but unlikely the seller will give you this right), or from their accountant directly (assuming they don't do their own taxes).

I agree...paint chips and fabric swatches are my guilty pleasures :)

Yes, the reneging buyer could put a bit of a spanner in the works if they think they're owed something for any money they paid out, but my guess is they aren't out of pocket much, and the "some issues and not doing proper due-diligence" they mentioned might be a complete fabrication.

You can also look into renting an ozone machine after you get all the fabrics/carpets out of the house, which works wonders as well.Do you have pics you could post to show the condition?

I had my car broken into forever ago, they took my radar detector and some  crap but they threw a lit cigarette on my seat and burned the fabric on my brand new car. 

We cage all of our A/C units now using custom fabricated 2 inch square tube, typically mounting them into the wall so the bolts have to be released from inside.

I am also considering replacing w/ a pre-fabricated/manufactured 4 unit building.