For painting, if it is a 5+ year old paint job or has rooms with weird colors I tell them that I will paint 1 room of their choice in my choice of matching neutral color.  

I have tried contacting them at their last known phone number, no answer, and no return call.My problem is I have out of state prospects, who have already passed my screening, with flying colors, who need housing by 3/2.

Set the dining room table with a feast of fried chicken, watermelon, and a big glass pitcher of brightly-colored Kool Aid?

The colors correspond to an areas location grade (on an A to F scale), which is simply a score calculated by looking a eight different risk indicators and comparing them against the averages in the area.Areas that have improved one or two grades in a relatively short time will signify dramatic improvements and help predict the path of progress. 

Now that's a horse of a different color.

I usually charge $20-50 for the patching you described, should be 20 minutes(or less).ALSO, I strongly suggest you use factory premixed color, I use Home Depot Behr Swiss Coffee, it makes it easy to blend future repairs and when we have turnover, its just quick freshen up coat, without having to go full on multiple coats of paint and primer, or set up for spraying, etc.

If so what color should I paint the roof and wall?

@Jack Pomerantz, That's like asking which color is better, blue or black?

I don't mean to say "re-invent the wheel," just suggesting something simple: change of envelope color, envelope style, etc.

However, I will not be replacing the blinds, adding an accent color, or installing a better shower head to suit your personal tastes.4.