How do you dispose of unwanted homes in packets

[Dean Letfus]

Interested in what you guys do when you get offered a packet of properties, let's say 20 homes and 4 or 5 of them are houses you don't want and would never buy but the n umbers overall mean you can afford to take them. In many cases they are uninhabitable or in blight areas that will never rent. So does anybody have any idea how to get rid of them, even for free!