Lillie Leon v. New York City Department of Education, et al.

Petitioner testified and submitted evidence during a 3-day 3020-a hearing, wherein the Arbitrator, Felice Busto rejected material evidence from Petitioner, such as A-41, A-43, A-48-49, A-77, A-78, A-91-92. The Arbitrator made factual errors, in favor of the DOE, the decision was rendered outside of the normal deadline. The decision has prevented revelation of material facts through this doctrine of collateral estoppel. THE QUESTION PRESENTED IS If the Arbitrator's decision was rendered unlawfully will this limit the scope of the preclusive effect of Res Judicata and Collateral Estoppel per this Court's decision in Hall Street Assoc., LLC v. Mattel Inc., 552 U.S. 576 (2008))?