JN
John W. Nassen
John W. Nassen is a lawyer in Dallas, TX who works for Nassen Mediations. Practice areas include Alternative Dispute Resolution, Construction. Court admissions include Fifth Circuit Court of Appeals, Texas Eastern District Court. Licensed in Texas since 1976. Graduated from Valparaiso University in 1976.
Claim profileContact attorney
Law school
Bar admission
Office
Disciplinary
JN
John W. Nassen
Nassen MediationsDallas, TX·49 years licensed
Claim profileContact attorney
John W. Nassen is a lawyer in Dallas, TX who works for Nassen Mediations. Practice areas include Alternative Dispute Resolution, Construction. Court admissions include Fifth Circuit Court of Appeals, Texas Eastern District Court. Licensed in Texas since 1976. Graduated from Valparaiso University in 1976.
Law school
Valparaiso University
Class of 1976
Bar admission
1976
State Bar of TX · #14814300
Office
PO Box 12593
Dallas, TX 75225
Disciplinary
None on record
Clean since admission
Case data
Case data
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Practice, courts & credentials
Practice areas2 listed
Alternative Dispute ResolutionConstruction
Courts admitted5 total
Fifth Circuit Court of Appeals
Texas Eastern District Court
Texas Northern District Court
Texas Southern District/Bankruptcy Court
Texas Western District Court
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Last refreshed Aug 2026