A professional person employed by a debtor, a trustee, or a committee must be “disinterested”—i.e., a person who (1) is not a creditor, an equity holder, or an insider, (2) is not and was not, within two years before the date of the filing of the petition, a director, officer, or employee of the debtor, and (3) does not have an interest materially adverse to the interest of the estate or of any class of creditors or equity security holders by reason of any direct or indirect relationship to, connection with, or interest in, the debtor, or for any other reason.
Bankruptcy Code §§ 101(14), 327(a). See also Conflicts Counsel, Disgorgement, Professional Person.