Seller has IRS liens, need advice on how to get partial release

[Jason McDougall]

Happy Monday BP!

I've been working with a seller that is trying to sell 3 houses that are part of his father's estate. The IRS has a lien against his father's estate in the amount of $330k, and I have a contract with the seller to buy all 3 houses for $120k.  The seller and my title company have been trying to get a partial release of lien for the 3 houses so that they can be sold, but we haven't been able to make any progress. The seller is also aware that 100% of the proceeds of the sale will have to go to the IRS to pay down the $330k lien of his father's estate. The IRS has been very unhelpful and unresponsive, so I thought I'd see if anybody here has encountered this situation before, and what channels they went through to get the ball rolling and resolve it.

Thanks in advance!