Do you want 14 residential units and 3 commercial units in beautiful Brooklyn for the low low price of: Free? The blogger at Hawthorne Street points to Prospect Lefferts' 205 Parkside Avenue, "an abandoned rathole" that has been vacant since 1979 and is now being advertised as free (though they doubt it's really free). There's even a Craigslist ad backing up the sign on the building. Any takers? UPDATE: The new rumor is that this is a prank. We still bet squatters could get in a few months of free rent, however. [via Curbed]