I would not recommend doing the design part yourself unless you are extremely familiar with current trends, picking materials, coordinating colors, understanding product specs, and building code for that matter.

Infill with a new brick color to accent the house?

Looking at risk factors such as the type of tenants, evictions, vacancies, maintenance repairs, how they treat the place, etc. are all risks that aren't factored.Just adding some more color for those reading this.PS I own 4 houses in Indy and 2 in KC, so I'm speaking from experience.

The prohibitions specifically cover discrimination because of race, color, national origin, religion, sex, disability and the presence of children.

And don't go for anything under a 3.5mm thickness or a 12 mil wearlayer WITH a scratch resistant FINISH (The wearlayer is just the clear coat over the color, the Finish is what gives it its durablity) .

I even brought in a decorator I know to pick out paint colors.

But the house is stucco exterior with tons of cracks in the stucco that have to be repaired. 2 stucco Contractor's have quoted us $12k - $15k to sand blast, patch, apply a new "brown coat" and finishing color coat.

Upon inspection, the house passed with flying colors, I had a structural and Mechanical engineer's letter deeming the home safe.

Consider the effects of color  - dark will darken the room even though it looks classy and, if it gets nicks, the scratches will show the nicks more than a light color (same thing for cabinets). 

Taking a shot in the dark before I read any comments, to see where my own head is at regarding investor psychology.With the 1 unit already rented, it looks like your coming out of pocket $1,150/month.Plus $1,400 in SL and Car NoteYou have $20k in free cash that's not currently earning anything, but has the potential to earn $1,300/month or $15,600/year.That would mean your RR on the $20k would be 78% if you do the necessary upgrades to rent the 3rd unit.The $1,300/month also means you'd be living rent free with a cash flow of $150/month.