If these were formal tax liens, on record with the county, then the woman and her lawyer may have had a responsibility to check for the liens before finalizing the divorce; but I suspect that the numbers indicate that the wife didn't know of any lien and that the husband didn't inform her of any liens.
If we infer that the ink is barely dry on the judgment, with the wife discovering the liens when she attempted to transfer title for the real estate to herself, she may be able to return to court to seek modification of the judgment. The longer she waits, the less likely it becomes that a court will modify the judgment; but the court may order other relief consistent with the judgment.
If the husband assumed the tax debt, the wife can seek enforcement of the judgment in relation to his obligation to pay the debt and free her of the liens. Of course, to pay off liens he needs money, and at this point we don't know if he has any.
The wife should consult her divorce lawyer for an evaluation of her situation and advice on how to best proceed.

