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Mark Janssen

Mark Janssen

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San Marcos, TX
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About Mark Janssen

Attorney Biography

Licensed for 38 years, Mark Janssen is a Criminal Defense and Drug Crimes lawyer in San Marcos Texas who attended Texas Tech University School of Law

Practice Areas

Criminal Defense (55%)
Drug Crimes (12%)
Sex Crimes (12%)
DUI / DWI (11%)
Domestic Violence (10%)

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Résumé - Mark Janssen

Bar Licenses

Texas State Bar
Member in Good Standing


Texas Tech University School of Law
Texas Tech University School of Law

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Contact Mark Janssen

Mark Janssen

110 E San Antonio St
San Marcos, TX 78666
Office: 512-396-0066

More Information

Bar Membership Information

Texas Bar Membership -

Mark Janssen - Membership information with The State Bar of Texas - Find more information about Mark Janssen on The State Bar of Texas website including status and disciplinary history.