If you've had good tenants, when they ask to paint (promising "neutral colors, not pink & purple"), do you generally let them?

Make sure that it at a bare minimum meets the 1% rule....although often you will see it is higher than this. 

The FHA Streamline sweatshops don't need to calculate income, barely need to verify employment, don't even need an appraisal department, virtually zero buy-backs, etc, so there's a whole bunch of overhead costs they simply don't have at all, and they can hire the dumbest/cheapest people for all positions.

When I get them it's awesome because they're usually one guest per room and barely add wear and tear on the home. 

I thought that was good info from @Rick Bassett but I was a little confused by the conclusion that is was barely worth it when you consider the extra work.You didn't detail or even mention in your post how much extra work or what that entails.

@Brent CoombsIf I rent out the property at the median price range for the area I will barely cash flow.

I just want to open as much of that space up as possible after the removal of the furnace/heater and create the largest single room possible, or at the least combine the closet room and the furnace room into a finished room with a floor more comforting than the current bare concerete.

They barely pass muster as ultra short-term trading instruments. 

I am mostly just looking for a bare bones cheap simple build or manufactured home. 

Barely noticeable unless you were standing in the neighbors yard and looking for it.LandscapingStorySo this one worked out better than the last.