About the Brewster Law Firm

We represent our clients in business litigation and transactional law, construction law, real estate law, and personal injury defense. We are experienced in a wide variety of other legal areas. We are unique because we handle both transactions and litigation, providing our clients continuity and consistency when dealing with their legal concerns.   We honestly and ethically evaluate our clients’ cases and provide clients with accurate information. If we cannot help our clients we explain why. Please click on the individual pages for more details about each of our practice areas.

Our Attorneys

Mark Brewster

Mark P. Brewster is the owner and president of The Brewster Law Firm. Mark has been licensed since 1988, and has experience in construction law and litigation, complex commercial litigation, transactional work, insurance defense, and general legal work.

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Blaire Wiersig

Blaire Wiersig is an associate attorney with the Brewster Law Firm. Ms. Wiersig joined the firm in 2014 after graduating from law school, and focuses her practice on civil litigation and probate maters.

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Sean T. Beiter, of counsel

Sean serves as of counsel to the Brewster Law Firm. He began his legal career while he was still in law school, serving as a law clerk to the General Counsel office of United Services Automobile Association (USAA) in San Antonio.

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Gregory W. Geerdes

Greg is an associate at the Brewster Law Firm. He was licensed in 1996 and has practiced law in the San Antonio and surrounding legal communities since he was licensed Greg handles a variety of civil litigation, transactional work, and probate matters for both individual and business clients.

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