Mary Thamm and Sheryl O'Briant began their legal career at Bracewell & Patterson (now Bracewell & Giuliani) in 1989. Since that time, they have specialized in first party litigation, insurance defense and coverage issues relating to residential and commercial properties.
Both Mary and Sheryl have unique expertise in evaluating property damage cases, from a legal and a practical viewpoint. They have practiced in venues across the State of Texas, and participated in over 3000 mediations involving property damages, construction issues and coverage disputes.
Mary Thamm
Mary is the founding partner of the firm of Thamm & O'Briant, LLP, which has focused on first-party insurance litigation primarily in the area of property and casualty losses.
She has extensive experience in all aspects of litigation and has been lead counsel on thousands of cases filed in Texas state and federal courts.
Mary has been involved in over 1500 mediations throughout Texas. She has also arbitrated dozens of cases involving water or storm damage to houses and commercial buildings.
Sheryl is a partner in the firm of Thamm & O'Briant, LLP. She has extensive experience in the area of first-party insurance "bad faith" litigation, property damages, construction defects and casualty losses.
Sheryl has first chaired trials involving coverage disputes and property damages, and has handled thousands of mediations involving disputes over property damages resulting from storms, hail, fires and other catastrophic events affecting residential and commercial properties.
She is well-versed in policy interpretation and coverage analyses on residential and commercial policies in the state of Texas.
