Michael Tierney is a seasoned and sophisticated attorney and business advisor, having counseled many CEOs and public and private businesses on various transactional, governance and government relations matters for more than three decades. He has experience as both a large firm partner and a state and federal government in-house attorney.

Michael currently serves as Deputy Legal Adviser at the U.S. Department of State and previously served as Acting General Counsel at the U.S. Agency for International Development. In both roles, he has counseled senior government officials on significant transactional and international matters.

Prior to his service in the current administration, Michael was a partner at a Philadelphia law firm for two decades where he practiced corporate law and chaired the firm’s government relations group. Michael has also worked in the Pennsylvania governor’s Office of General Counsel as a Deputy General Counsel.

Outside of his legal practice, Michael has served on several non-profit boards (three as Chairman). Additionally, Philadelphia’s Volunteers for the Indigent Program has honored Michael for his pro-bono legal services.