Which type of mold in condo unit requires removal?

Sam: The best way to find an answer to your question is to "Google" the types of molds you have listed.

Here is a link to the Centers for Disease Control web page titled Facts about Stachybotrys chartarum and Other Molds

Found from doing a google search as Nancy suggested

From this web site (which appears to be a mold inspection company) I offer the following [emphasis added]

Aspergillus
This genera is found on many different textiles and organic materials such as soil, compost, stored grain, wood and paper and its moisture requirements vary widely with some preferring dryer conditions. If is often found in water damaged carpet. It is a dry spore and spores may be carried in the air making Aspergillus a common cause of respiratory irritation and infection. The mold may be woolly or cottony in texture and shades of green, brown or black in color. The spores are similar to Penicillium spores and sometimes indistinguishable through non-viable analysis, and as such, are often classified as Penicillium/Aspergillus. Elevation of any one species of Aspergillus in viable samples can be an indication of the growth of that mold inside a building. Species, such as A. niger, A. versicolor, A. fumigatus, and A. flavus, are most commonly found in water damaged buildings. If elevated levels of Aspergillus species or Penicillum/Aspergillus spores (non-viable sampling) are reported in a building, but not visible mold is observed, the source if often in the carpeting. Aspergillus and Penicillium are the most commonly reported molds found if water damaged carpeting is present. These molds feed well on the jute backing of carpeting, the glues in the carpet padding, and on the organic dust that accumulates in carpet. High levels of moisture vapor emitted from slab foundations will frequently cause elevated levels of Penicillium and Aspergillus. Sometimes the presence of higher levels of spores indoors than outdoors is not due to the presence of mold growth indoors. Aspergillus species have dry spores that get washed out of outdoor air during rain events or periods of high fog, which drastically reduces outdoor levels. There can often be a lag in the change in indoor levels, which can lead to higher levels indoors when compared to outdoor levels. As long as the level is still within the normal range for the mold elevated indoor levels may not be a problem. Since the spores of these molds are a common part of carpet dust, recent vacuuming without a HEPA filter can also temporarily cause elevated levels indoors.

It appears that the mold they are complaining about is common in carpets. I'd suggest advising the individual to have the carpets cleaned (or at least buy a better vacuum cleaner and use it).

One thing I did discover is that most of the responses on mold when performing an internet search is from companies who want to sell you a service. Therefore, one needs to expect some form of embellishment when reading those pages.

Thanks. I've seen the test results - and they indicated no health risk and said the howeowner (the Board member) and his wife/2 kids) were safe to remain in the unit. This is why I'm unlcear that he is now asking for a full removal of the mold (at a cost estimated to be $25,000!). This was from a leak that occred 2x... from what I have heard, mold that needs to be removed is generally caused by slow/ongoing water leaks - not one or two time leaks that were quickly stopped. I'm unclear how he would be able to remain in his unit all these months if there was a danger and the mold needed to be removed? He is planning to sell his unit soon... The HOA immediately put in large industrial dryers in his unit to absorb the moisture after the leak.

Soungs like your microbiology tests are clean and there is no significant health risk associate with the mold that is present. It does need to be cleaned up, long tern expose could cause allery problems for the resident, pets, guests and you need to clean it up to be able to tell if it comes back or you didn't get it all the first time.