Flip the house or the note?

[Bobby R.]

One of my yellow letters went to an owner where it's listed w/ an agent (he called me). The sellers want what the house comps for, let's say $100K. There's a buyer already in the house buying on land contract that doesn't expire. They balance on their loan to the seller is over $200K, six years into a 40 year mortgage. This land contract doesn't expire according to the agent and they buyers in the house can't refi due to the comps.
How do I flip this house or note? Sellers owe only $12K; they just want out.