JG
Joe Ernest Guillaumin
Joe Ernest Guillaumin is a lawyer in San Antonio, TX who works for City of San Antonio - Office of the City Attorney. Practice areas include Criminal, Family, Litigation: Personal Injury. Licensed in Texas since 2010. Graduated from Texas Wesleyan University in 2009.
Claim profileContact attorney
Law school
Bar admission
Office
Disciplinary
JG
Joe Ernest Guillaumin
City of San Antonio - Office of the City AttorneySan Antonio, TX·16 years licensed
Claim profileContact attorney
Joe Ernest Guillaumin is a lawyer in San Antonio, TX who works for City of San Antonio - Office of the City Attorney. Practice areas include Criminal, Family, Litigation: Personal Injury. Licensed in Texas since 2010. Graduated from Texas Wesleyan University in 2009.
Law school
Texas Wesleyan University
Class of 2009
Bar admission
2010
State Bar of TX · No. 24072132
Office
P.O. Box 769477
San Antonio, TX 78245
Disciplinary
None on record
Clean since admission
Career history
3 observed firms
Based on State Bar of Texas snapshots — each row is a firm the attorney was registered with at one of our quarterly pulls.
- Unknown firmAS OF MAY 2023Private Law Practice · San Antonio, TX
- City of San Antonio - Office of the CityAS OF APR 2026Private Law Practice · San Antonio, TX
- City of San Antonio - Office of the City AttorneyAS OF JUN 2026Private Law Practice · San Antonio, TX
Case data
Case data
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Practice & jurisdiction
Practice areas
- Criminal
- Family
- Litigation: Personal Injury
- Oil, Gas and Energy Resources
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Last refreshed Jun 2026