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L. Barrett Boss

Criminal defense Attorney at Washington, DC

5.0   2 reviews

also known as Barry Boss

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About L.

Learn L.’s areas of practice.

Practice areas
Licensed for 37 years
State MD
Status Active
Acquired 1995
Updated 11/12/2022
State DC
Status Good Standing
Acquired 1986
Updated 06/08/2022
State PA
Status Inactive
Acquired 1985
Updated 12/04/2022

We have not found any instances of professional misconduct for this lawyer.

Contact L.

Cozen & O'Connor
The Army and Navy Building
1627 I Street NW, Suite 1100
Washington, DC, 20006


5.0 / 5.0
  2 customer reviews
5 Star
4 Star
3 Star
2 Star
1 Star
Posted by James | May 30, 2013
20 years ago (1994) Barry saved my job at Georgetown University. I was since promoted and received several employee commendations. I retired from the university in 2003 and as a result of the staff benefits package, my son who was 5 years old at the time, received the dependent tuition. He graduated this month from the University of Maryland with honors. Although I have not spoken to Barry in over twenty years, I credit his wisdom, intelligence and fortitude for making this all possible for me, my wife Faith and Zach. We will be forever greatful. Which is why I have no problem with leaving my name.
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Posted by anonymous | April 3, 2009
Barry saved my son's life.
Barry helped me to save my son's life. He so well represented him in our legal case; but, that was only a part of his excellence. He helped my son to survive with his knowlege of psychology , his compassion, caring and support, so my son did not act on his suicide thoughts. Barry helped him to maintain his drug sobriety through an incredibly difficult and painful legal case. My son was suicidal from the angst of this case which required my son to look back at his years of child abuse and then into his past drug addiction. Barry worked with my son, my son's psychologist and with me to get through this ordeal. Barry followed through perfectly and quickly on any matter that needed attention. I never had to wait for a response in those difficult months which spanned well over a year. Quite an accomplishment! He developed positive relationships with the prosecution and kept things on as even keel as possible. I highly recommend Barry and am grateful to have found him.
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  • Free Consultation 120 minutes
  • Hourly Rates $ 575-695 per hour
  • Pro bono 5 %
Payment methods
Cash, Check, Credit Card


AVVO RATING 10.0 (Superb)

Work Experience

  • Member
  • Cozen O'Connor
  • 2004 - Present
  • Adjunct Professor
  • The George Washington University Law School
  • 2000 - Present
  • Partner
  • Asbill Moffitt & Boss
  • 2000 - 2004
  • Public Defender
  • Federal Public Defender's Office
  • 1995 - 2000
  • Partner
  • Asbill Junkin & Myers
  • 1992 - 1995
  • Associate
  • Asbill Junkin Myers & Buffone
  • 1986 - 1991
View all work experience


  • George Washington University National Law Center
  • JD - Juris Doctor with High Honors
  • 1985
  • Bates College
  • BA - Bachelor of Arts
  • 1982


  • American Board of Criminal Lawyers
  • Fellow
  • 2006 - Present
  • American Bar Association Criminal Justice Section Sentencing Committee
  • Co-Chair
  • 2006 - Present
  • American Bar Association Criminal Justice Section Corrections and Sentencing Committee
  • Co-Chair
  • 2004 - 2006
  • National Association of Criminal Defense Lawyers
  • Member, Money Laundering Task Force
  • 2000 - 2002
  • Co-chair
  • 2000 - 2004
  • Programs Committee, DC Association of Criminal Defense Attorneys
  • Chairman
  • 1994 - 1995
View all associations

Languages Spoken

  • English

Honors and Awards

  • Distinguished Adjunct Faculty Teaching Award
  • The George Washington University Law School
  • 2006
  • R. Kenneth Mundy Lawyer of the Year
  • District of Columbia Association of Criminal Defense Lawyers
  • 2000


  • The Champion magazine
  • Money Laundering Defense After Santos and Regalado Cuellar
  • 2008
  • Federal Criminal Practice
  • (Book)
  • 2008
  • Washington Post
  • Where Victims' Rights Go Wrong
  • 2007
  • Criminal Justice Magazine
  • Negotiating Federal Plea Agreements in the Post-Booker World: "Same As It Ever Was"
  • 2006
  • Inside the Minds: Best Practices for White Collar LItigation
  • White Collar Criminal Defense in the Post-Enron Era: An Overview
  • 2006
  • Federal Sentencing Reporter
  • Time Does Not Heal All Wounds
  • 2000
  • the Champion magazine
  • Downward Departures in Money Laundering Cases: The Punishment Should Fit the Real Crime
  • 1998
  • Federal Sentencing Reporter
  • Do We Need to Increase The Sentences in White Collar Cases? A view from the trenches
  • 1997
  • Champion magazine
  • Sentencing Manipulation and Entrapment as Defenses
  • 1995
View all publications

Speaking Engagements

  • Aviation and Space Law Litigation
  • Criminalization of Aviation Accidents
  • 2007
  • 16th Annual National Federal Sentencing Guidelines Seminar
  • Plea Bargaining In the Post-Booker Era
  • 2007
  • Government Investigations Seminar
  • What Every In-House Counsel Should Know Once a Government Investigation Commences
  • 2006
  • Complex Litigation Seminar
  • Plea Negotiations in Complex Cases
  • 2005
  • 14th Annual National Seminar on the Federal Sentencing Guidelines
  • Plea Bargaining in the Post Booker Era
  • 2005
  • Continuing Legal Education Program
  • How to Avoid Criminal and Civil Pitfalls for Charitable and Non-profit Entities
  • 2004
View all speaking engagements

Attorney endorsements

Received (2)
Given (1)
Endorse L.
Criminal defense Attorney | Feb 16
Relationship: Fellow lawyer in community
"For years, I have known Barry as a highly skilled, highly knowledgable devoted criminal defense lawyer. I have appreciated his ego-less demeanor in talking with me about criminal defense. Barry is among those lawyers I would not hesitate to recommend to other criminal defendants when I have a conflict due to co-defendants in a case."
Criminal defense Attorney | Jun 05
Relationship: Fellow lawyer in community
"Barry wrote the book on Federal Criminal Practice. He is one of the best."
Criminal defense

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Washington Criminal defense Lawyer L. Barrett Boss
L. Barrett Boss
Criminal defense Attorney
Washington, DC
Licensed for 37 years
Free Consultation