AttorneyMatthew William Tynan● 17 total views
MT

Matthew William Tynan

O'Hanlon, Demerath & Castillo·Austin, TX·16 years licensed

Matthew William Tynan is a lawyer in Austin, TX who works for O'Hanlon, Demerath & Castillo. Practice areas include Administrative and Public, Appellate: Civil, Environmental. Court admissions include Fifth Circuit Court of Appeals, Texas Western District Court. Licensed in Texas since 2010. Graduated from Cumberland School of Law in 2009.

Claim profileContact attorney
Law school
Class of 2009
Bar admission
2010
State Bar of TX · No. 24072489
Office
808 West Ave
Austin, TX 78701
Disciplinary
None on record
Clean since admission
MT

Matthew William Tynan

O'Hanlon, Demerath & Castillo
Austin, TX·16 years licensed
Claim profileContact attorney

Matthew William Tynan is a lawyer in Austin, TX who works for O'Hanlon, Demerath & Castillo. Practice areas include Administrative and Public, Appellate: Civil, Environmental. Court admissions include Fifth Circuit Court of Appeals, Texas Western District Court. Licensed in Texas since 2010. Graduated from Cumberland School of Law in 2009.

Law school
Bar admission
2010
State Bar of TX · No. 24072489
Office
808 West Ave
Austin, TX 78701
Disciplinary
None on record
Clean since admission
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. Law Office of Matthew W. TynanAS OF MAY 2023
    Private Law Practice · Austin, TX
  2. O'Hanlon, Demerath & CastilloAPR 2026 — PRESENT
    Private Law Practice · Austin, TX
Case data

Case data

Click “Load case data” above to view charts.

Practice & jurisdiction
Practice areas
  • Administrative and Public
  • Appellate: Civil
  • Environmental
  • Litigation: Commercial
  • Litigation: Personal Injury
  • Mediation
Courts admitted
  • Fifth Circuit Court of Appeals
  • Texas Western District Court
No reviews yet. Be the first →
Last refreshed Jun 2026