Anyone have BATS in their house?

Wife and I have been chasing bats for years living in an old two story house. Had approx. 70 bats in our attic after we had an old barn torn down . Hired a proffesional to rid house of bats with a three year guarantee. Bats went from attic to roosting behind siding on our garage. He got rid of them but still have some in attic he has been trying to get rid of , they can enter through smallest of openings. Best advice get a tennis rachet and try to contain the bat in one room while he circles the room you should be able to swat him with the rachet. Make sure he is dead or he will be back . Good luck !