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About me

I  have been practicing law since 1996. After three years of active duty as an Army JAG and another three in the Collin County District Attorney’s office, I went into private practice. Since then my practice has been dedicated to criminal defense, and just about all of my cases are in Collin and Dallas County. I know the DA’s, and I know the judges, and they know me. If you’ve been accused of a crime, call me. I can help you, and I will defend you.


Languages spoken: Spanish, English

Photos and videos

103386 1353021643

Practice areas


  1. Criminal Defense: 100%



Fixed (always)

Payment types:

Cash, Check, Credit card

Attorney endorsements

9 total 

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  • Alexandra Gonzalez-Waddington

    I endorse this lawyer.


    Alexandra Gonzalez-Waddington Military law Attorney
    Relationship: Fellow lawyer in community

  • Jill L Rogers

    Highly respected and overall a great attorney. I endorse this lawyer.


    Jill Rogers Divorce and separation Attorney
    Relationship: Other

Contact info

2490 W. White Avenue
Mckinney, TX, 75071


TXEligible To Practice In Texas 199607/16/2016
We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
Cum LaudeSt. Mary's University, School of Law1996
Scholastic Excellence in Criminal LawCorpus Juris Secundum1994
Work experience
TitleCompany nameDuration
Criminal & Capital DefenseLaw Office of Paul D. Key, P.C.2013 - Present
Criminal Defense AttorneyLaw Office of Paul D. Key, P.C.2003 - Present
Criminal Defense & Criminal Appellate AttoneyLaw Office of Paul D. Key, P.C.2005 - 2013
Chief Prosecutor, Domestic ViolenceCollin County District Attorney2001 - 2003
ProsecutorCollin County District Attorney2000 - 2001
Captain, JAG, ProsecutorUnited States Army1999 - 2000
Special Assistant U.S. AttorneyU.S. Attorney, Puerto Rico1999 - 2000
Captain, JAG, Operational LawUnited States Army1998 - 1998
JAG 1st LieutenantUnited States Army1997 - 1997
Association namePosition nameDuration
McKinney Family Violence DefensePresident2015 - Present
Texas Criminal Defense Lawyers AssociationMember2014 - Present
Collin County Capital Defense LawyersChair, Scientific Evidence2014 - Present
Collin County Criminal Defense Lawyers AssociationTreasurer/Secretary2012 - 2013
Collin County Criminal Defense Lawyers AssociationMember2003 - 2011
Legal cases
Case nameOutcome
Assault/Family Violence - DismissedCharge dismissed.
Possession of Marijuana - Not GuiltyNot guilty.
Possession Controlled Substance - ReducedCharge reduced to misdemeanor with time served
See all legal cases 
Publication nameTitleDate
A Guide to the Texas Transportation CodeA Guide to the Texas Transportation Code2002
School nameMajorDegreeGraduated
St Mary's University of San AntonioInternational RelationsMA - Masters1996
St. Marys University School of LawLawJD - Juris Doctor1996
San Diego State UniversitySpanishBA - Bachelor of Arts1992
Speaking engagements
Conference nameTitleDate
Collin County Capital Defense DinnerScientific Evidence in Capital Defense2015
3CDLA Monthly LuncheonThe Dangers of Court-Appointmented Lawyer System2004