When inspection items or other reductions come into play my fee is OFF THE TABLE for negotiation.

You will want a termite inspection since wood wasn't treated in that era and if you suspect say termite or beam damage have someone look at those items. 

I have already been pre-approved for a traditional 30yr fixed @ 4.2%.

Tile is also more traditional in those parts of the country than wood. 

Stocks and bonds, medical equipment, food and grocery, pretty much any retail item, cars, clothes, real estate... they all have their middlemen.Investing in real estate, especially wholesaling, has become wildly popular within the last 5 years.

Lots of marked down items stored in a large warehouse. 

Other things I like to look at is age of all mechanicals, roof, etc as there may be a need to replace, repair these items sooner than later. 

Even on a newer house that number is going to run you at least $150/month.As @Patrick Liska mentions there are several items not included on the list

The clog yesterday needed toilet removed.My question is, do you think it makes more sense to bill the Resident directly after it was unclogged, or wait till the lease is up and itemize the clog charge as a deduction on their security deposit?

And of course there are probably new types of programs but this will give you a feel with out abusing an agent and let you check things out on your own.Best deals are bought with CASH,,, next best with quick loans  Next best with traditional snail financing.