Just because a home inspector finds mold, it doesn't have to kill your real estate transaction. Knowing the facts about mold can help salvage many mold discovery scenarios. According to Moldman LLC, below are a few examples:
 
Scenario: A few inches of mold is found in a small area of the home and your client is worried that mold is everywhere.
 
In this scenario it can be helpful to let your buyers or sellers know that mold only grows where there is water or high relative humidity. If mold is identified around a single window where condensation is present, there is no need to start ripping out walls in other areas of the home that are dry.
 
Scenario: Mold is disclosed in the listing agreement or later identified during an inspection and you and your client are unsure whether you need it tested.
 
If you already see mold, testing is almost always an unnecessary waste of money. This is because it does not matter what type of mold you have, as once any mold has been identified, all mold should be treated the same way.
 
Scenario: Mold is disclosed or identified but you are not sure whether you need to hire a professional to remove it.
 
In many cases minor mold problems (less than about 10 square feet of mold) can easily be handled by the homeowner with a few basic supplies from the hardware store. But if your client prefers to hire a professional instead, let them know that mold remediation done by a professional company for minor problems should not be expensive.
 
Scenario: Your client is on a tight deadline to close and you are worried there is not enough time to remove the mold prior to the closing date.
 
Let your client know that mold can be typically be removed in 1-3 days by a professional company, and should not stretch out the time it takes to close the deal.
 
Scenario: There is an extensive mold problem and a professional mold remediation company is needed to remove the mold before the deal can close.
 
If a mold remediation company is needed, protect your clients from dishonest contractors with over-inflated cost estimates by letting them know that mold remediation is not that complicated. There are essentially just two basic steps involved in mold remediation: containment (e.g. using poly sheeting to prevent cross contamination); and removal (e.g. safely removing moldy drywall, scrubbing/sanding 2x4s, removing airborne mold spores with HEPA air scrubbers, etc.).
 
Scenario: Unexpected mold is found in an attic or crawlspace during an inspection.
 
Often attic and crawl space mold goes undetected by the homeowner because these are not places much time is spent in. Close more real estate deals by educating your clients that unexpected attic and crawl space mold is common. In fact some studies indicate that as high as 60% of all crawl spaces have mold. Let your buying clients know that they can still live safely without worry if the remediation is done properly (and the water source is fixed).
 
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The above is adapted from the webpage "Don’t Let a Little Mold Ruin Your Realtor Commission! 10 Ways To Save A Deal When Mold Is Involved" by Moldman LLC. You can read it in its entirety here: https://moldmanusa.com/realtors-dont-let-a-little-mold-ruin-a-big-commission-10-ways-to-save-the-transaction/