Many home inspectors create potential problems for themselves because the client does not understand what the inspection will cover. For this reason, InterNACHI® encourages inspectors to always have the client sign the InterNACHI® Agreement (between inspector and client) that specifies what the inspector is going to do. Mold causes health problems. So, if the inspector notices mold or moisture, or if the inspector learns that mold mitigation has taken place in the past and the client doesn't want to order mold testing, the inspector might consider having the client sign a separate waiver of mold testing.
Note: InterNACHI® markets members who offer mold testing using various covert websites. If you are a member who offers mold testing or other ancillary inspections, add those services to your profile at https://www.nachi.org/ancillary-services.htm
You should also consider joining www.IAC2.org