About the Firm

Experienced Excellence

O'Hanlon, Demerath & Castillo has been serving the State of Texas since 2000 with measurable success. We pride ourselves on a deep tradition of excellence, ensuring only the highest quality service. We understand the challenges and pressure that comes with every case and are here for you, every step of the way.

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At O’Hanlon, Demerath & Castillo, we are committed to providing superior client service and legal representation. Based in Austin, Texas with offices in San Antonio and the Rio Grande Valley, our lawyers welcome clients to bring questions and encourage inquiries about what the firm can do for them. Our expertise and experience, combined with our highly trained staff, make us uniquely well – equipped to handle even the most complex cases. You can count on a depth and breadth of experience in your area of need.

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Dependable, calm, and well spoken, our team of legal professionals add the personal touch our clients deserve whilst approaching each new case with the attention it needs.If you suspect you have a case and need to talk to a seasoned team of professionals, please contact us immediately for a free consultation. Get in touch with us today.