What is orange squash???

Of course you need a FL drivers license and appropriate car insurance. Check FL DMWs web site for details.

Medical coverage depends on the individual company's package and what of that package your husband elects.

What do you mean by flexible-working policies?

FL does not have individual income tax but taxes mostly tourism related items rather high.

You either get used to the heat, live inside with AC or spend the summer elsewhere. It is not necessarily the heat but the combination heat and humidity. Depending on the specific location that also means prolific insect life.