Bankruptcy Law Questions? Ask a Bankruptcy Lawyer.
It is part of the Bankruptcy Code, specifically Bankruptcy Stat. 545(1)(A) & (D), which you can see here:
Since the county attorney does not work for you, she is under no obligation to tell you the whole story.
The other attorney is correct. I misread the statute - only a trustee can ask the Bankruptcy court to remove a statutory lien.
How much - if any - equity does your home have?
How much is the tax lien?
With tax liens (other than for property taxes), the mortgage company gets paid before the lien. Unless you think the equity in your home will increase by at least $150,000 before your house is sold, the tax lien will have no affect on your property.
However, if you do think this is a possibility, you can make a deal with the trustee to pay part of the proceeds of the house (but less than the lien amount) - say $5,000 - if the trustee agrees to file the 545 motion for you.
You should ask that question in the Tax section.