Can property taxes be settled?

[Bab Adetiba]

Under what event can the city settle taxes?

For example, a lot was listed , I made the offer, contract executed, and right now I have it under contract for $7000 and the owner owes $5000 in taxes.. Currently the title company is doing the tax certificate process and he owes $5300 to be exact, Is it possible or likely to instead lower my offer to $2000 and settle the taxes with the city?

I know people do this with delinquent land owners. But not sure if this falls under that situation

If you have experience with something like this, please help.