We lived in Florida several times, and particularly in Miami it was always a war with insects.
Agree with those who say get professional advice, at least at the start. They will come, look at the place, and a respected exterminator will give you great advice. They can evaluate your problem and help to solve it. Sure it will probably mean a trip to your home by one of their exterminators, and maybe repeat visits every so often. But they will also telll you how to keep the beasty population down between visits, and maybe tips about how to prevent the critters access.
Have done exterminating about the house myself, but for minor infestations. Once you feel the bugs have won, in my opinion, it is time to call in the bug marines.
Before criticizing a person, walk a mile in his shoes - then you are a mile away and you have his shoes!