Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.
Eleventh Circuit: Charles K. Breland, Jr. v. USA, et al.
Bankruptcy court's removal of the debtor-in-possession in favor of a trustee prompted a loss of authority over the estate that constituted sufficient injury for Article III standing to challenge the removal.