Looked at Florida statue 720.305 - https://www.flsenate.gov/La they fines as per the below.

We are pumping in some sweat equity: killing all the weeds and doing a non-organic mulch and river rock yard, power wash and paint the wooden fences, resurfacing all cabinets, faux-marble epoxy on the counter tops, and redoing the floors (there is a mix of scuffed up hardwood and wood appearing panel...looking to just make it all panel).

Not exactly Millionaire's Row.There's a guy down the street putting slab granite round-in-place marble floors in the bathrooms of his triplex, swears he'll get his money back in forced appreciation.

She found some very pretty marble at lowes for ~$2 sqft.  

High-end finishes, such as marble countertops and custom cabinetry, can add an air of sophistication and elegance, while state-of-the-art smart home technology can enhance convenience and security.

Be creative and choose from an assortment of colors and choices including granite, marble, travertine, porcelain, slate, limestone, ceramic, quartzite, and sandstone. 

JC Marble-Granite   jose 200 5839- reasonable and good service

For the kitchen I heard 1 1/4" is a good thickness for marble countertops and for vanity countertops I heard 3/4" is a good thickness for a marble vanity top.

Some jumbo lenders allow borrowers to close if the electrical, plumbing, and safety items are signed off with no flooring, then they can put in Calacatta purple marble if they desire or whatever odd finish you might not choose.

Man did I know the state statues, but not a damn thing about how to find a deal, put it together and close it.