Primary Job Title Managing Partner Primary Organization 
McKenna Long & Aldridge
Location Washington, District of Columbia, United States Regions Washington DC Metro Area, Southern US Gender Male
Mark Flanagan, Managing Partner of McKenna Long & Aldridge LLP, joined the firm in 1988 after serving as an Assistant United States Attorney for the District of Columbia. As Managing Partner, Mr. Flanagan oversees the firm’s financial and operational affairs. Mr. Flanagan assumed this position in 2004, and finds “great satisfaction in working
with his fellow partners and coordinating the business aspects of running a large firm.”
Mr. Flanagan's law practice involves defending large corporations, small businesses and individuals in civil fraud and white collar criminal cases. He has defended clients in all types of matters, including procurement fraud, health care fraud, federal Food, Drug & Cosmetic Act fraud, environmental crimes, civil False Claims Act lawsuits, Customs fraud, Foreign Corporate Practices Act cases and Congressional investigations. Mr. Flanagan has substantial experience in conducting corporate internal investigations and making voluntary disclosures to the government. He also has extensive familiarity with the United States Sentencing Guidelines.
Mr. Flanagan is a member of McKenna Long & Aldridge LLP’s White Collar Defense Group. He helps coordinate joint initiatives between the group and other departments of the firm. He also has been a frequent speaker on civil fraud, criminal and compliance matters.
As an Assistant United States Attorney, Mr. Flanagan served exclusively as a federal criminal prosecutor. He tried over twenty trials, argued a dozen appellate cases and conducted numerous grand jury investigations. In the late 1970s, Mr. Flanagan also served on the staff of the Select Committee on Assassinations of the United States House of Representatives, which investigated the death of President John F. Kennedy.
As the parent of one boy and one girl, Mr. Flanagan and his wife, Patricia, spend much of their time outside the office involved in their children’s activities. Mr. Flanagan particularly enjoys coaching youth lacrosse and playing golf.
