You can use a gallon of oil-based primer (Kilz Original) and a 2-inch chip brush to spot prime each of those areas.

So I've lived in a couple shipping container complexes while working in the oil fields, sound similar to your idea.

Oil prices already went below a hundred bucks.

So good luck with that. yeah, also we can't control what we can't control.What we can control is making more oil & gas drilling, making more home supply, making unemployment low, growing the economy and lowering the dollar it is that simple LOL

We've been renting to traveling nurses, contractors, oil pipeline workers, visiting/temporary engineers, etc.Hospitals have administrators/recruiters, generally in HR, that manage the traveling nurse programs. 

I know it probably isn't financially beneficial to change my own oil but I know I will do it right.

The fabric softener is great at helping to remove the wallpaper.My first attempt at skim coating was lousy.Another option in houses with good (not cheap) wallpaper is to skip all the removal and use an oil based primer over the wall paper, then paint (latex is fine). 

I heard that high-end SFR prices are dropping due to oil bust.

Some oil tank companies we called say that a typical clean up in case of oil spills in residences wd be in the 8-10K range.

In many Wholesalers defense, they didn't start out "unscrupulous" - they were just promised untold riches from self-proclaimed Gurus who peddled the snake oil without providing the knowledge or tools to succeed.