Founder
Roy C. Brock
(1925 - 2008)
President and Director
John A. Guerra was born in McAllen, Texas and was raised on his family’s cattle ranch in Starr County, Texas. He interned at the firm in 1987 and became an associate in 1989. He later became a shareholder in 1994 and President of the firm in 1996. He continues to manage the affairs of the firm today, while remaining active as lead trial counsel on a full docket of cases.
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Vice President and Directors
Mark Strandmo was born in Mankato, Minnesota. He was raised and attended college there. He joined the firm in 1995 and became a shareholder in 2000.
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A.J. Dimaline was born in San Antonio, Texas in January 1962. He has the distinction of being the first baby born in San Antonio that year. He joined the firm in 1997 and became a shareholder in 2002.
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Shareholders
Celia Guerra was born and raised in San Antonio, Texas. She joined the firm in 2014 and became a partner in 2023.
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Scott Jones was born in Spartanburg, South Carolina in July 1955. He joined the firm as of counsel in 2009 and became a partner in 2013.
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Bob Scheihing is a life long Texan. He was born in Houston and grew up in Ft. Worth. He is a graduate of St. Mary’s Law School.
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Tom Mailloux was born in Harvey, Illinois and grew up in the Greater Chicagoland area. He joined the firm in 2002 and became a shareholder in 2014.
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Attorneys
Caitlin Bratt was born and raised in Upstate New York. She attended college at State University of New York at Oswego where she studied Public Justice and Political Science. Caitlin received her Juris Doctor from Michigan State University College of Law in May 2013.
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Amanda Esparza Carollo was born and raised in Laredo, Texas. She attended Wellesley College in Wellesley, Massachusetts, where she majored in Neuroscience. Prior to attending law school, she worked at Dechert LLP in New York City for several years focusing on complex product liability litigation. She received her law degree in 2011 from Albany Law School in Albany, New York.
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Brittany K. Delgado was born and raised in Corpus Christi, Texas. She graduated from Texas A&M Kingsville, graduating summa cum laude and receiving a Bachelor of Arts degree in Political Science and History in 2013. She attended St. Mary’s School of Law in San Antonio, where she participated in both civil and criminal clinics gaining first hand litigation experience.
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Augustus T. Denham was born in McAllen, Texas and raised in the Rio Grande Valley. He joined the firm in 2020.
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Michael Don Joy, II, was born in Corpus Christi, Texas, and raised in South Texas. Michael attended St. Mary’s University at San Antonio, where he graduated summa cum laude in 2001, with a Bachelor of Arts in Political Science. Michael received his Juris Doctor from Baylor University School of Law in Waco, Texas, in 2004.
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Kimberly Kayatta was born in New York and has had the pleasure of living in nine of the fifty states.
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Kanon grew up in San Antonio, Texas, graduating from Roosevelt High in 1987. He went on to earn two college degrees before heading to law school at Southern Methodist University.
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Frederick Saporsky III was born in Gary, Indiana but spent much of his childhood in Texas. He attended St. Mary’s University in San Antonio, Texas where he received his Bachelor of Arts in International Relations. He continued his education at St. Mary’s where he earned both his Master of Arts and Juris Doctor.
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Firm Administrator
Esther Mahon Marks
Ms. Marks was born in County Galway, Ireland and moved to New York with her family as a child. She has been with the firm for over 30 years and has been a Legal Administrator since 1992. Ms. Marks is responsible for the day to day operations of the firm as well as the responsibility for staff personnel.
Esther enjoys traveling, dancing and Pilates.
