http://www.propertytalk.com/forum/showthread.php?30118-Sleepout-Buyers-Beware!&p=266293#post266293
According to one of the Propertytalk.com subscribers, a number of landlords often consider the building of a Sleepout on their investment properties as a way to increase their rental return on investment, hence the above post (and this website) is a timely warning for their forum.
Something tells me that this story is about to go viral.