After receiving her J.D. from Georgetown Law, Professor McMahon joined the law firm of Debevoise & Plimpton LLP, where she specialized in securities litigation, white collar criminal defense, and intellectual property disputes. She also represented several Guantanamo Bay detainees in their habeas corpus petitions before federal courts. From 2008 to 2009, Professor McMahon was law clerk to the Honorable Richard J. Leon of the U.S. District Court for the District of Columbia. Prior to law school, she was an award-winning reporter for The Sun in Lowell, MA.
Contributions to Law Reviews and Other Scholarly Journals
"Man accused of trying to help militants to stay in prison," coverage by News Channel ABC 12, November 30, 2018, mentioning Professor of Law Susan A. McMahon.
"Mentally ill man pleads guilty to helping radicals in Syria," coverage by AP News, August 22, 2018, quoting Professor Susan McMahon.
"Decisions near for man charged with aiding radicals Decisions near for man charged with helping Syria radicals," coverage by Winston-Salem Journal (NC), August 1, 2018, featuring Professor Susan McMahon.
"US judge deems mentally ill man fit for trial in terror case," coverage by WTOP (DC), April 13, 2017, referencing a 2013 study by Associate Professor Susan McMahon.