Sean J. Riley


Washington, D.C.

(202) 912-4865

(202) 861-1905

Formerly the chief deputy attorney general (AG) of Kentucky, Sean offers his clients the benefit of an insider’s perspective into the dynamic and increasingly consequential state AG community, gained through a combination of private practice, government service, and political involvement. With experience handling inquiries for a broad range of clients before state AGs in all 50 states, Sean has a unique understanding of AGs’ motivations, enforcement authority, and interactions with the business community.

Sean provides both counseling and investigative services to his clients. In his role as counselor, Sean helps clients understand how to engage with AGs on important public policy issues, and how to mitigate potential future risk. On the investigation side, Sean aims to find creative solutions that address AGs’ concerns, limit the length and scope of an inquiry, and minimize disruption to his clients’ business. He has substantial experience handling issues relating to consumer protection laws, Medicaid fraud, and false advertising, among others.

Sean’s clients range from Fortune 10 companies to startups and trade associations, and he has worked with a number of clients “disrupting” traditional market sectors.

From 2004 to 2009, Sean was in private practice at several nationally acclaimed law firms and handled high-profile criminal defense matters and federal criminal investigations for Fortune 500 companies, including leading pharmaceutical and medical device manufacturers.

Before law school, Sean worked as the deputy finance director and assistant treasurer for then U.S. Senator John Kerry’s 2002 re-election campaign in Massachusetts. In 2010, Sean took a leave of absence from the Kentucky Attorney General’s office to serve as finance director on Attorney General Jack Conway’s campaign for the U.S. Senate. In 2004, 2008, and 2012, Sean was an active volunteer and fundraiser for the presidential campaigns of John Kerry and Barack Obama, and he served as an elected delegate to the DNC from Boston in 2008.



Cozen O’Connor Expands Nationally Recognized State Attorneys General Practice with Addition of Sean J. Riley

December 01, 2015

Riley previously served as chief deputy attorney general in the Kentucky Attorney General’s office and will be resident in Cozen O’Connor’s Washington, D.C., office.


The State AG Report Weekly Update December 10, 2015 [The State AG Report Blog]

December 10, 2015

Antitrust Pennsylvania and District of Columbia Attorneys General and the FTC Challenge Merger of Two Office Supply Companies Pennsylvania AG Kathleen Kane, District of Columbia AG Karl Racine, and the Federal Trade Commission (“FTC”) have sought a preliminary injunction and temporary restraining...

2017 Guide to State Attorneys General [Map]

May 05, 2015

The guide includes information on attorney generals in all 50 states, the District of Columbia, Commonwealth, and Territories of the United States, including a photos, year first elected or appointed, political party affiliation, leadership positions and brief background summaries.

Events & Seminars

Past Events

Health Law 2020

December 04, 2019 - Philadelphia, PA

CTeL Executive Telehealth Fall Summit 2018

December 04, 2018 - Washington, D.C.

CTeL Executive Telehealth Fall Summit 2017

November 30, 2017 - Washington DC


  • Columbia University School of Law, J.D., 2004
  • Duke University, A.B., 1999

Awards & Honors

2013 Best LGBT Attorneys Under 40, National LGBT Bar Association 

2014 Louisville Business First's 40 Under Forty

  • Kentucky
  • Massachusetts
  • New York
  • District of Columbia