I would encourage anyone who has tax or legal questions to contact their tax preparer, a tax attorney or the IRS directly in order to obtain answers to questions about tax liens and taxes in general.
As a real estate agent working in the Central Florida area, I have seen homes sell that had Federal Tax liens on them. In these situations the IRS agreed to lift the lien from the house in order for the home to close. Even if you owe more that the home is worth, there are a number of options to satisfy the tax lien.
You can find more information on this subject by visiting the IRS page dealing with tax liens and selling your home.
