Good ol delinquent taxes

[Charles Sullivan]

Hey guys, long time no see! Still here in San Antonio. While being away from the BP community I've had some ugly experiences, fell short a few times, and closed a few deals(Wooo!!). So, I just came across a property that has delinquent taxes, I am looking to wholesale the property(my first property with back taxes). The seller and I agreed that I could make a down payment for their back taxes and set up payment arrangement for the remaining balance. However, I'm stalled when it comes to writing up the contract. The property will not be free and clear at point of sale(because back taxes will be on installment). So what verbiage is necessary on my A-B contract as well as B-C being that the taxes will be on installment?? 

*In hopes to make a great deal for my end buyer*

The plan is to basically put delinquent taxes on back end. offer seller net price. inform end buyer of payments of back taxes but also sell the property at a really good price.