Tell the buyers if they want a house that is up to current code , buy a brand new one . 

Minimum $100,000 rehab based on my 10 minutes of inspection, shingles missing, foundation problems, cracked tile in house, cracked drywall joints everywhere in the house, rotting deck in backyard etc....

Edisto is on deck to be next.

The upper story and deck of the residence come out over the top of the motel forming kind of an exterior corridor or breezeway that pops out on the front of the building. 

He owned a duplex, and one of the long-term tenants had built a small deck out back without permission.

Further enhancements included constructing a back deck and repainting the interior to modernize and enhance the home’s appeal.

Further enhancements included constructing a back deck and repainting the interior to modernize and enhance the home’s appeal.

I just bought it in the fall and am trying to complete a bunch of modifications during off-season (e.g. metal roof, certain safety features, treating the deck, possibly updating the fire pit area, etc). 

Buyers want patios, decks, and backyard spaces that extend the home’s livable area.

I wouldn't bother investing outside of the big city centers, nor buying anything younger than 30 years old.