DirectoryAustinOscar G. TrevinoLast refreshed Jun 2026
OT
BAR · 20211275

Oscar G. Trevino

O'Hanlon, Demerath & Castillo·Austin, TX·34 years licensed

Oscar G. Trevino is a lawyer in Austin, TX who works for O'Hanlon, Demerath & Castillo. Practice areas include Administrative and Public, Business, Civil Rights. Court admissions include Fifth Circuit Court of Appeals, Texas Eastern District Court. Licensed in Texas since 1991. Graduated from University of Texas in 1991.

47 TOTAL VIEWS
3 VIEWS (30D)
Contact attorney
Law school
Class of 1991
Bar admission
1991
State Bar of TX
Office
808 West Avenue
Austin, TX
Disciplinary
None on record
Clean since admission
Reviews
No reviews yet
No scored reviews
OT

Oscar G. Trevino

O'Hanlon, Demerath & Castillo
BAR · 20211275
Austin, TX·34 years licensed
Contact attorney

Oscar G. Trevino is a lawyer in Austin, TX who works for O'Hanlon, Demerath & Castillo. Practice areas include Administrative and Public, Business, Civil Rights. Court admissions include Fifth Circuit Court of Appeals, Texas Eastern District Court. Licensed in Texas since 1991. Graduated from University of Texas in 1991.

Law school
University of Texas
Class of 1991
Bar admission
1991
State Bar of TX
Office
808 West Avenue
Austin, TX
Disciplinary
None on record
Clean since admission
Reviews
No reviews yet
No scored reviews
Career history

2 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.

  1. Walsh Gallegos Trevino Kyle & Robinson PAS OF MAY 2023
    Private Law Practice · Austin, TX
  2. O'Hanlon, Demerath & CastilloAPR 2026 — PRESENT
    Private Law Practice · Austin, TX
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Case history

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