AttorneyGuillermo Matthew Martinez● 18 total views
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Guillermo Matthew Martinez

Guinan O'Siochain Law Group, LLC·Omaha, NE·1 year licensed

Guillermo Matthew Martinez is a lawyer in Omaha, NE who works for Guinan O'Siochain Law Group, LLC. Practice areas include Appellate: Civil, Business, Construction. Licensed in Texas since 2024. Graduated from Creighton University in 2023.

Claim profileContact attorney
Law school
Class of 2023
Bar admission
2024
State Bar of TX · #24144867
Office
1010 N 102nd St Ste 203
Omaha, NE 68114
Disciplinary
None on record
Clean since admission
GM

Guillermo Matthew Martinez

Guinan O'Siochain Law Group, LLC
Omaha, NE·1 year licensed
Claim profileContact attorney

Guillermo Matthew Martinez is a lawyer in Omaha, NE who works for Guinan O'Siochain Law Group, LLC. Practice areas include Appellate: Civil, Business, Construction. Licensed in Texas since 2024. Graduated from Creighton University in 2023.

Law school
Bar admission
2024
State Bar of TX · #24144867
Office
1010 N 102nd St Ste 203
Omaha, NE 68114
Disciplinary
None on record
Clean since admission
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Practice, courts & credentials
Practice areas5 listed
Appellate: CivilBusinessConstructionContractsLitigation: Commercial
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Last refreshed Aug 2026