@Dustin Beam -Jeff mentions a lot of really good points. 

The ceiling beams was spray painted black.There was an odor still coming into the house so it was suggested that we had a rodent issues and to remove all the old fiberglass insulation in the attic and put cellulose which is coated in borax to deter animals and help insulate the house.

I actually suggest a laser printer, the thing about low use with the inkjets is the inkjet cartridges dry out easily, and/or they "self-clean" which is where they just use up their own ink, and the cost of the ink is a total scam. 

If you are dealing with an addition built on 12" beams (or if the original foundation is old and not built to current standards), the repair company might not be able to push the piers down to refusal depth or psi due to the beam not taking the load, thus leveling it, but not guaranteeing it will not continue to move in the future, thus not providing warranty.9.

@Manolo D  How much should I ballpark replacing those beams and leveling the floor to decide on doing the deal(16 x 72)? 

Was it holding up the beam before this happened? 

Sarah, I use a laser measuring device..

I was laser focused on the development business, which undoubtedly shaped me into who I am today.Nowadays I have the experience and confidence to expand into other niche's (I've recently bought and sold a couple of medical condos for example).

Laser focused on long-term "passive income" and generational wealth.

even a $200# punching bag and a big guy pounding away daily should not do a thing o a properly structure steel I beam....