He says there are bugs in the apartment so we have the exterminator spray his place and FUMIGATE the empty unit.  

Water vapor hitting a poorly insulated cold area then turning into liquid water maybe. 

Spray the stone down with a mild cleaner like Simple Green and let it sit for a few minutes.  

I have liquid funds and also other funds tied up in paid off properties.  

There is impetus from the SEC to foster a venture exchange too to create liquidity for investors and promoter's offerings.  

He makes 60k a year and has a mortgage and a car note.  10k in liquid savings and some bedroom cash for dinners with the wife. 

While this will eat into our profit, we'd be better off doing that than trying to handle it on our own (and for personal reasons, we don't have time for that level of involvement anyway).As you can guess, we're total newbies when it comes to rental property investments, but we have enough liquid assets to buy one or two low coat properties to begin with, so we're now getting serious about this dream.I found this site after downloading the BigPockets ebook and from what I can see, there's a wealth of information here.

Are you liquid enough to service the loan?  

Having the mold remediated should be possible, cleaning and spraying in the crawlspace.My question;   Anyone have experience with disclosures to tenants of building history for rentals?  

I have a budget of $30K liquid money for now to use.