UIC §1817: (a) If the director determines that the amount of any contributions, interest, and penalties are sufficiently secured by a lien on other property or that the release or subordination of the lien impos

(a) If the director determines that the amount of any contributions, interest, and penalties are sufficiently secured by a lien on other property or that the release or subordination of the lien imposed under Section 1816 will not jeopardize the collection of the amount of the contributions, interest, and penalties, the director may at any time release all or any portion of the property subject to the lien imposed by Section 1816 from the lien or may subordinate the lien imposed by Section 1816 to other liens and encumbrances. (b) If the director finds that the liability represented by the lien imposed under Section 1816, including any interest accrued thereon, is legally unenforceable, the director may release the lien. (c) A certificate by the director to the effect that any property has been released from a lien or that the lien has been subordinated to other liens and encumbrances is conclusive evidence that such property has been released or that the lien has been subordinated as provided in the certificate.