The specific question presented is: Whether a party who was not, and has never been named as an underlying party to any court proceedings for/against petitioner can invoke Rooker-Feldman doctrine to dismiss litigation?

The wide-ranging question: Neither the granting nor the denial of a motion under Colorado's Rule 120 non-judicial proceeding shall constitute an appealable order or judgment as a matter of Colorado law. Thus, do Rule 120 non-judicial proceedings exhibit preclusion in federal courts?

Whether a party who was not, and has never been named as an underlying party to any court proceedings for/against petitioner can invoke Rooker-Feldman doctrine to dismiss litigation