Closing real estate deal with a tax lien

With the IRS and federal government shut down, how can you creatively and legally close escrow with or without title insurance, with a 15K tax lien that needs to be released or subordinated, that has a payment plan in place but can’t wait 3 consecutive payments (months) because there is a foreclosure date withing 30 days? The seller with the tax lien isn’t making any proceeds on transaction.

I know this is a tuff one so please the most creative and experienced RE minds please help!!!