I have been in this industry for over 30 years, consulting home and business owners. I do testing and home inspections for mold and water damage, NOT REMEDIATION. However, I can assist you in dealing with your own mold problem, but can recommend a reputable company to remove mold.
I am a certified hygienist and regularly perform testing for methamphetamine in known and suspected clandestine lab sites. If something doesn't seem right in the home you plan to purchase or currently live, methamphetamine testing may be the correct thing to have done.
I am also a certified cleanup contractor...