Basically you see the home as a set of main systems (plumbing, hvac, roof, electrical, even drywall), finish levels (how high end will you go on each system) and fixtures - pay close attention to little stuff like faucets on the fixtures.

In regards to my deal they made us submit two floor plans and change the plans for egress and electrical load etc.

Requires electric/Internet.

Any plumbing or electrical upgrades?  

And I assume you mean electric backup heat strip?

I am currently work for a large flooring corperation and I do the electrical and mechnical work at the plant.

You can bet if they messed this up, everything they touched is crap (think electrical and plumbing too).

Took out some old plumbing once, got it on my hands, wiped it off, took the rest of the day off, felt like death warmed up.The key to getting bugs out of the property is ensuring that there are no holes in the house, eg plumbing fixtures, under the toilet, doors have proper sweeps that fills the gaps, electrical covers that cover the drywall, behind dishwasher, and so forth.

Or even electric-  a lot of electrics look cheesy, but I have one that I love (you can run it any time of year, with or without heat). 

Find the least obvious route to access the main living floors and cut wall,,,take out all bricks from that side,,,make it into a storage closet type thing and  put new heaters with duct work out sidewalls OR electric heaters with no ducts.