Very good article from a California based environmental consultants web site.
BUYER BEWARE
Like every industry, the mold business has its share of scam artists raking in huge profits from the general public’s lack of knowledge about mold. Unfortunately, awareness is the consumer’s only defense against getting ripped off for thousands of dollars.
The object to killing mold is to kill its “roots”. Mold remediation involves the need to disinfect wood and wood-based building materials, all of 
which are porous materials. Thus, chlorine bleach should not be used in mold remediation as confirmed by OSHA’s Mold Remediation/ Clean Up Methods guidelines. The use of bleach as a mold disinfectant is best left to kitchen and bathroom countertops, tubs and shower glass, etc. …….
Level – I Common Symptoms of Mold Exposure
The most commonly reported symptoms of short term Mold exposure:
Home inspector’s are typically not experienced to inspect for mold. You should hire a true third party mold/indoor air quality testing firm in addition to your home inspector when buying a home.
Why should I ask to have an inspection done?
There are many reasons why you may decide to have your home or business inspected for mold:
PHOENIX- After the series of storms that hit Arizona last week, the Arizona Department of Health Services (ADHS) and 
Arizona Division of Emergency Management (ADEM) encourage individuals and business owners to be aware of and take precautions against the growth of mold.
http://www.kvoa.com/news/state-warns-against-growth-of-mold-in-homes-businesses/
Brand new house contains toxic mold. Built by Drees Homes.