And one of the units I went into has an issue on the second floor where one of the room hardwood floor is wavy and I can feel like a speed bump in one spot in the room, is that like a foundation beam?

Over the next 2 weeks we will have our tile floors installed in Kitchen/Bath, Support Beam installed, new walls completed, and kitchen cabinets installed. 

  $6200 later and that house has a brand new drain.Doing a bath remodel on my own house, realized I wasn't confident about beams to replace the bearing walls I was removing. 

Also, depending on budget/investment and ARV, maybe build a large cedar deck out front, possibly the same width as the dormer, with large pergola beams jutting out from the house, to create a false roof, seating area out front, and to add size to the front of the structure to TRY to bring some proportion back to the visual aspect of main level vs. dormer.

Stay laser focused on the education, and when you've got a plan, take action.

That price is also for redecking half of the roof, as it's pretty flimsy when you walk on it, and sistering a cracked rafter beam.

The majority of the house is on a pier beam foundation, while two small areas have slab foundation. 

I had it inspected and discovered that there was evidence of a fire in the attic, it had knob and tube wiring that was not sound, there was a misplaced support beam in the basement which was causing the floor to sag among several other issues.

It will generate a off harmony effect.Also the beam & direction of the light play a important part of staging.

In fact, I am buying one where one of beams in the crawl space is sagging, but I am getting it at a very good price so I am okay getting the work done.I wouldn't go out looking for these kind of houses, but as long as the numbers made sense, I would buy it.