Most homes for sale to require a pass of termite inspection or a current termite treatment. Please contact your Local Cooperative Extension Office to pin down what the requirements are in your area.
Carpenter ants in FL would be the same as carpenter ants in other regions of the country. We generally recommend using Termidor SC outdoors around the perimeter of your home. This is labeled to be used every six months outdoors.
What types of bait are you using? We would be happy to make another recommendation if you have been using them for a while.
There is no need to panic. We would recommend using Termidor which is one of the best termiticides on the market and is the treatment of choice with professional companies. For the activity you have inside, you would drill a hole or tear out a piece of sheetrock and treat directly into the wall void with some Termidor in a one gallon sprayer. For the outside treatment, you would apply Termidor around the perimeter of the structure according to the guidelines in our "How To Do A Termite Treatment" article. This is the best way to protect your home.
When apply Termidor SC as a perimeter spray, apply at a rate of 1.5 gallons of solution per 1,000 square feet, using 0.8 ounces of concentrate per gallon of water. You should spray to evenly cover with a low-pressure coarse spray, so you do not need to drench the areas you are treating. Termidor SC should be used in a pressurized sprayer, not in any type of fogging or misting machine. For general perimeter treatments with Termidor SC, see the last two pages of the product label.
Termidor SC may be used outdoors only for spider control, per the product label. We do have a great Spider Control Kit that includes CB-80 Aerosol Insecticide for contact spraying, and Temprid SC, which can be applied indoors as a crack and crevice or spot treatment. This kit also contains glue boards, which are excellent tools for monitoring and for catching stray spiders indoors. Please see our Spider Treatment Article for more information and tips about preventing spider infestations.