What do I say when asked “Did you write these books?

Be honest. Let them know “I hired a team of professionals that helped me publish the book.”
We also have the option that says  “Provided by” instead of “Author” if that makes you feel more comfortable. The point is to provide good service to the homeowner or buyer and help them with their real estate service needs. However, we do give you full copyrights and these are your books to use.