Seller's inspector found mold in condo, should we alert HOA?

[David Stuart]

My parents are purchasing a condo in Huntington Beach, CA. It's currently in escrow. Last week seller's inspector found mold on the second floor ceiling (crawl space). They supposedly fixed it.  Our realtor said the inspector is a trusted big company, and that we don't need our own inspector. Today, we went to the property and saw a large wet spot on the first floor carpet, about 10-15 inch diameter. It's visibly wet but we don't see leak in ceiling.

Seller has offered to bring back his inspector and maybe a plumber to find out the problem. 

My main question is: Should we alert the HOA of the mold problem?

My worry is that after we buy the property, and HOA or neighbor discover mold on their property, we will be held responsible. Is it better to bring this up now while still in escrow so seller and HOA and come to a settlement?