What on earth do you do with vacant land in C class neighborhoods?

[Ryan Dossey]

We had a seller bring us a package with 4 homes and a vacant lot in it. Seems like they are trying to pass off the land so they don't have to deal with it. They value it at 15k. 

You can't build on it as I don't think you can build a house cheap enough that would make sense in the area. Properties around it are worth 45k or less. 

I imagine it would just be an alligator to my cashflow. 

Tax write off? Maybe?