Can I leverage back taxes during a wholesale deal?

[Chad K.]

I'm currently in the process of wholesaling a deal that has back taxes of around 8,000. The property has been vacant for 4 years. The seller agreed to pay the back taxes if we close but I was wondering can I use the back taxes as a way to lower the sellers asking price of 30k? any creative ways to use the current owed taxes to lower the selling price?