Mold was caused by shallow groundwater/excessive rain last winter.

Once you know the reason(s), for the flooding, then you'll be able to figure out a solution.I'd also strongly suggest that you don't re-finish the basement until you've determined the cause of the flooding and fixed the problem (last thing you want is to re-finish the basement, and have it all ruined again by another flood).I'd suggest first watching some videos on youtube on flooding, drainage, groundwater, french drains, sump systems, water catchment systems, etc, just to give you a better understanding on what can cause flooding, and what types of fixes might work. 

If it's a simple issue or something where we don't require a formal write-up, it could be $125-200.Then I'll bring in the specialists to get bids.If the problem is solved by putting up beams (bowing walls, typically), I'll bring in my foundation company who specializes in putting up beams and installing drain tile (the bowing issue is generally related to too much ground water pressing against the foundation, and the long term fix is to keep the water out).

The fact you are in Florida with a much higher ground water temperature makes it a no brainer.

AZ water company is ground water wells.

Capture the water that is falling, and try to reintroduce it into the groundwater system through mother nature's own faculties.

A regular homeowners policy would not normally cover the damage due to ground water seeping in. 

Personally, I spend significant time looking for foundation issues, significant settling or structural issues, and indicators of previous flooding (particularly flooding caused by groundwater rising up from underneath the slab)--these issues are usually deal-breakers for me.

The Indian tribe there has consequence and I would be concerned for the quality of the ground water in the immediate vicinity.

Food can clump together and cause clogs.Facial Cleaning Pads – Thicker than toilet paper and thus can cause problems.Dental Floss – NOT biodegradableHair – Clogs pipes in no time.Dirt – Dump it outside, not in the toilet.Dryer Sheets – Made out of synthetic materials, not biodegradable.Prescription Medicines – Destroys bacteria and contaminates groundwater.