Thanks to everyone who replied.

Oh, how I would love to have a professional exterminator come in but they cost a fortune!! I will probably have to buy the foggers (if I can find them... I've looked for them in several stores and couldn't find them)

I had also planned on bringing the cats to a groomer for a flea bath, but they want $50 per cat (I have 4 cats), so that's out of the question. I have flea shampoo, so I will have to bathe them myself.

My plan is this... to give the cats each a flea bath. Take them out of the house in their carriers and then do the fogger thing. Hopefully, that will work.

Wish me luck!!!!!