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About me

Brittany Lannen graduated from Texas A&M University in 2006 and graduated from Texas Wesleyan School of Law in 2009. As a law student, Ms. Lannen competed in multiple oral advocacy competitions, reaching the semi-finals or better with her team in most competitions and taking top individual honors at an international competition. At her graduation, Ms. Lannen earned the Pro Bono award for the number of hours she spent interning in the Dallas and Collin County District Attorney's Offices.

Ms. Lannen began her legal career prosecuting misdemeanor offenses in Collin County. She tried over 30 jury trials in her two years as a misdemeanor prosecutor, along with hundreds of trials before the court and hearings. She later pursued a position in McLennan County in the Crimes Against Children division where she prosecuted felony offenses against the most vulnerable members of society.

In the Fall of 2012 Ms. Lannen opened her own office in Bosque County. In private practice, Ms. Lannen handles primarily Criminal Defense, CPS representation, and Family Law cases. Ms. Lannen is also an Attorney Advisor for the Mock Trial Team at the Valley Mills High School.

Ms. Lannen has earned a reputation in the community for handling cases with integrity. She is most at home in a courtroom advocating for her client, but recognizes that the best results often happen before the courtroom doors open.


  • Guardianship Certified, 2012 – Present

  • Certified Mediator- 2009- Present


  • Parent/Teacher Liaison at St. Paul’s Episcopal Day School 2015-2016

  • Mock Trial Legal Advisor, 2014 – Present

  • Family Abuse Center Speaker 2014 – Present

  • Rotary

  • Bosque County A&M Club



Photos and videos

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Practice areas


  1. Criminal Defense: 50%
  2. Family: 45%
  3. Appeals: 5%


Payment types:

Cash, Check, Credit card

Attorney endorsements

3 total 

Are you an attorney? Endorse this lawyer

  • Gary Churak

    I endorse this lawyer. She is well versed in Texas criminal law and procedure


    Gary Churak Criminal Defense Attorney
    Relationship: Fellow lawyer in community

  • Mario Gil Castillo Herrera

    I endorse this lawyer.


    Mario Herrera Family Attorney
    Relationship: Fellow lawyer in community

Contact info


P. O. Box 438
Valley Mills, TX, 76689


TXEligible To Practice In Texas 200910/19/2015
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
1st Place Individual OralistJohn Marshall International Information Technology & Privacy Law Competition2008
Semi-Finalist TeamLabor & Employment Law Competition2008
2nd Place OralistI. Richard Gershon Upper Level Competition2008
2nd Place BriefI. Richard Gershon Upper Level Competition2008
Finalist TeamEntertainment Law Competition2007
Work experience
TitleCompany nameDuration
PartnerDLW Law, PLLC2015 - Present
AttorneyThe Law Offices of Brittany L. Lannen, PLLC2012 - 2015
Assistant District AttorneyMcLennan County District Attorney's Office2011 - 2012
Assistant District AttorneyCollin County District Attorney's Office2009 - 2011
Association namePosition nameDuration
National Association of Professional WomenMember2014 - Present
Waco-McLennan County Bar AssociationMember2012 - Present
Texas Criminal Defense Lawyers AssociationMember2012 - Present
Waco-McLennan County Bar Association, Young Lawyers DivisionBoard of Directors2011 - Present
State Bar of TexasMember2009 - Present
School nameMajorDegreeGraduated
Texas Wesleyan UniversityLawJuris Doctor2009
Texas A&M UniversityFinanceN/A2006
Speaking engagements
Conference nameTitleDate
Texas Rural ChallengeUsing Collaboration to Change the Communty2015