Were it me, I would ask very explicitly about whether or not the inspector felt it was worth a mold test.

Usually one can smell it.

If there is a great amount of uncertainty as to whether it is worth checking then I would likely not check.

If you do get a mold inspection, I would recommend using the same guys I use for home inspections.

http://www.parrabuildingconsult.com
If you don’t use them, I would ask them about professional associations and references to check when engaging the services of another mold inspector.

Mold inspection can be lucrative for the unscrupulous. It pays to check references.