First off, congratulations on your Master's degree; you're obviously very proud of that.
Due to the condition of properties owned by people such as your father, its no suprise you wouldn't want to live in this part of town.
I'm very familiar with the Huntsville area; it too has crime, the uneducated, and dirt, so you're boasting doesn't fool me.
It takes a lot of gall to suggest that the commenters on this site should help repaint your father's rentals. Maintaining his property is not their responsibility; its his.
It's unfortunate that there is stress in owning rentals, however one would think that some time between purchasing the 1st and the 25th rental, one would realize that they weren't cut out for it and choose a different vocation.
If you should inherit these properties, you should also make it a point to learn where these houses are located. I would be very surprised to see you in Colonial Acres "hand painting every d*mn (do you use that language with the Autistic children you work with daily?) last one of those houses" since they are actually located outside the boundaries of Colonial Acres in the area to the south and west of Oaksedge Drive.
Given the poor physical condition of these properties, your choice of new paint colors will be the least of your worries; Good luck.