[It is currently empty] Both units have a space for a small stackable washer/dryer BUT there are no dryer ducts/exhausts/vent AND in the upstairs unit the plug would need replaced [it doesn't work and the inspector doesn't know why]I don't plan to buy washer and dryer because of the other expenses we already have [new flooring, plug for downstairs stove, need downstairs appliances] putting us near the top of what we can spend right now, but if I put in the new plug and ductwork, they could potentially buy their own.This is not a high rent area [think 05, 09, 13], but what do you think the positive/negative impact on rents would be to either: a) not repairing plug or adding vent and saying, "Sorry, no washer/dryer" or b) repairing it so they have the option if THEY want to spend the money.I would love to do it just to make my units nicer, but I have to be cognizant of what I'm currently spending.

What is the estimate to restore the property to its original color/condition?

Every month, the Tulsa area MLS provides an update that colors in a visual representation of data. 

I have had the best luck with Rentals.comUse pops of color (orange or red) accents

2) Other options:Forced Air: will require removal of water lines & radiators, replacing them with heat ducts, which will require lots of holes in the walls to run and patching expenses.

Wall panel-Do a 3-4' wainscot color change panel, with a different color panel up above.

It'll last forever :) I like the granite, but I like the BORING granite...not too much pattern, light in color as possible.

Added built in closets, which is not usual and also very unique designer lighting, as well as wall paper and bold color accent walls.What was the outcome?

The air ducts also need to be cleaned out. 

Also, in order to push the rent, buy at $450 each but make some improvements to paint color, maybe refinishing cabinetry, adding some cool features...