Something I've heard about recently is that copper piping is highly susceptible to corrosion in FL, something to do with the soil/water content?

The dust may or may not have lead, but you will still fail if the window sills, wells, or floor are dusty.Exposed/Bare Soil: Within three feet of the drip line (the exterior of the house) this will fail.

Darker colors will show wear faster. go for 100% waterproof, lay down a pad underneath so the surface is even and your floor lasts longer. try to get a thicker size.

The next stage in the matrix is called land development which consists of horizontal physical improvements like grading soil, installing wet and dry utilities, street improvements and flatwork (pouring streets and sidewalk, etc.). 

They 1) take a ton of water out of the soil (a big one like that probably 150gallons or so a day) this causes the ground the move and thus your slab/footings to move.

Top one stated "I buy homes" and the one under neath it "I buy cars" - it made me chuckle. 

If the soils are good often times it doesn't matter.   

I briefly looked over the Oakland sewer line requirements and it seems materials other then cast iron are allowed unless the line is less that 12" below soil.

Heck yes I would buy a house with solar panels; but only if I own them and I know the age of the roof/condition underneath them. 

Is it a soils issue or something less serious?