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Practice areas


  1. Family: 100%

Attorney endorsements

6 total 

Are you an attorney? Endorse this lawyer

  • Mark Rush Williamson

    Sarah is simply one of the best family law attorneys around. Very few attorneys can match her courtroom skills and even fewer come close to her attention to detail and professional demeanor.


    Mark Williamson Divorce and separation Attorney
    Relationship: Fellow lawyer in community

  • No photo

    Sarah Darnell is the ultimate professional, a skilled litigator and a wise legal counselor. She is a down to earth person, easy to relate to and trustworthy through and through.


    Patrick Rogers Mediation Attorney
    Relationship: Fellow lawyer in community

Contact info

KoonsFuller, P.C.

320 West Eagle Drive, Suite 200
Denton, TX, 76201


TXEligible To Practice In Texas 200608/17/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Rising StarTexas Monthly Magazine2010
Work experience
TitleCompany nameDuration
Associate AttorneyO'Neil & Attorneys Law Firm2012 - Present
Litigation ManagerCordell & Cordell, P.C.2008 - 2012
AttorneyThe Law Office of Mary D. McKnight2006 - 2008
Association namePosition nameDuration
State Bar of TexasMemberN/A
State Bar of Texas, Family Law SectionMemberN/A
American Bar AssociationMemberN/A
Annette Stewart American Inn of CourtMemberN/A
Publication nameTitleDate
Dallas Divorce Law BlogDallas Divorce Law Blog2012
School nameMajorDegreeGraduated
Sam Houston State UniversityPsychologyBS - Bachelor of ScienceN/A
Oklahoma City University School of LawLawJD - Juris DoctorN/A