George Washington U - they will refer you to National Student Clearinghouse for verification of degrees. Verification results show no records exist for either Stephen P. Corso or Steven J. Corso. The same for Cornell - Stephen/Steven did not attend Cornell and only has a BA from NYU - no Masters.
If you would like also, please call the PCAOB - they also do NOT have any records for either Stephen P. Corso or Steven J. Corso. The representative on the phone pointed out that in Steven J. Corso's linkedin profile it states "PCAOB type accountant".
Go to Danbury Superior Court and look up Docket #DBD-FA10-40122. Corso vs Corso and then look very closely at the Defendant's name: CORSO, STEVEN AKA CORSO, STEPHEN.
Stephen P. Corso is the same guy as Stephen J. Corso.