My mom and I recently moved our 2 cats and small dog into her Fiance's house. He already had two big dogs. We didn't know that since last summer he has had fleas... and has not been doing anything about it. He didn't tell us. I'm the only human being eaten so it took my mom and I awhile to find out what was biting me. But anyways, We have treated the animals monthly and have bathed the cats and my mom's dog. Her Fiance is being very lazy taking care of his two Shelties. They have not been bathed even though I told them we had to. We have bombed the house TWICE and we still have fleas.

Does anyone know any way to finally get rid of these things?