Jenner & Block

Justin C. Steffen is a partner in Jenner & Block’s Complex Commercial Litigation, Financial Services Litigation, and Bankruptcy Litigation Practice groups.  Experienced in all phases of litigation, Justin routinely represents companies in the financial services industry in navigating the evolving regulatory environment and addressing their dispute resolution needs.



In addition to representing clients in a wide range of financial services and other litigation matters, Justin is particularly focused on the intersection of technology and the financial services industry, including issues pertaining to marketplace lending, cryptocurrency and blockchain, and payments. Recently, Justin defended mortgage originators and depositors against breach of contract and tort claims stemming from their sale and securitization of billions of dollars of mortgage loans. Justin also counsels trustees, creditors, and committees in Chapter 11 cases and represents parties in complex bankruptcy litigation matters. Recently, he represented a committee of executive and administrative retirees in connection with its investigation and pursuit of claims in excess of $100 million.

In addition to his private practice, Justin maintains an active pro bono practice. He chairs Jenner & Block’s Domestic Violence Pro Bono Program and has counseled inmates in state and federal court, including representing a client convicted of multiple drug offenses at a criminal resentencing hearing in the Central District of Illinois and on appeal. Prior to joining Jenner & Block, Justin served as a law clerk on Senator Richard J. Durbin's Judiciary Committee staff.