If you have a few buildings, it might make sense to run everything through quick books if you want a stop gap measure before you really scale up. 

I’m from Wisconsin and don’t run into that all that often but I’d say if the square footage isn’t listed on the mls then it would be you as the buyer’s responsibility to measure that square footage when you see the house.

You will want to release your earnest money at that time as a measure of good faith. 

They will send someone out to measure.

I was seeing a lot of movement in the house so took corrective measures. 

House prices increased by 15% last year which is by all measures considered insane. 

It's just one of many measures to use when evaluating a purchase, and to be honest it's not my favorite. 

Is there a checklist you use or a certain group of tasks that you have the trades perform as preventive measures? 

You do have to spend 2-3 hours in the house to measure everything. 

@Kelly Chun in my experience the tax record/listing discrepancy is a fantastic way to get good deals.I just bought a duplex that was listed on MLS as ~300SF smaller than it actually was (I had it measured during due diligence.)