I've been divorced for a few months now. She has moved into a house where I believe mold might be an issue. When I've been there picking up/dropping off it smells like an old moldy house. I know for sure it was a paint over and move in. When I have them, I can smell a musty smell in their backpacks. Almost as if you can imagine a person who smokes in their house. Not overwhelming but it's present. She claims no mold. I told her I would even pay for a mold test....same answer ..no mold. What options do I have?