We instructed her on how to turn off system and requested se let us know if leak continued(we are in Missouri .. rental is in Florida..)A week later we called her and she said it was dry  .. on January 17 tenant called and said the city called her to report heavy water usage. my husband (a plumber) drove straight to Florida and upon inspection found a stress break in pvc pipe on main water line that goes into house (located the break under grassy side yard ) He said that kind of crack was from a heavy vehicle parking or running over that area.

As such, it undergoes very large compression/expansion based on how dry or saturated with water it becomes.  

Obviously, structural problems  / renovations, mold, rot, re-wire, re-plumb, will need more specific estimates. 

What happens when the wells dry up? 

Let it rot on the market, make the offer after the price decreases. 

Joists look good with no rotting.

My hour long, google search has, dry, there are some similar post from about 10 years ago in BiggerPockets, but don’t answer my question.

All rotted wood is getting repaired.

@Jose@Jose Gonzalez I have owned dry cleaners and have friends that sold theirs.  

my qiestion...can i just go in myself, tear out all of the walls, and put up fresh dry wall and flooring?