David A. Polsinelli

Shawn Bates has more than 22 years of practice in commercial litigation in the energy industry and across numerous other industries. He is a seasoned first-chair trial lawyer, handling cases worth tens of millions. He has conducted hundreds of depositions and supervised trial teams on matters of varying size. He focuses his practice on litigation and arbitration of complex disputes for clients in the energy sector (oil and gas companies, oilfield supply and support companies, pipeline builder...

J. Bradley Spalding is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. J. Bradley, who practices law in Houston, Texas, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which J. Bradley is held by other top lawyers in the same geographic and legal practice area.

Elizabeth Pringle Johnson is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. Elizabeth Pringle, who practices law in Houston, Texas, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Elizabeth Pringle is held by other top lawyers in the same geographic and legal practice area.

Stephanie Koo Song is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law and Securitization and Structured Finance Law. Stephanie Koo, who practices law in Houston, Texas, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Stephanie Koo is held by other top lawyers in the same geographic and legal practice area.

Mike represents a variety of clients in commercial, insurance coverage, tort, environmental, and Qui Tam/False Claims Act matters at the state and federal levels. He has tried numerous cases to verdict and represented clients in venues across Texas and throughout the United States. Mike’s accomplishments as a trial lawyer have been recognized by his peers, who elected him as a member of the American Board of Trial Advocates (“ABOTA”). ABOTA is comprised of trial lawyers repr...

Bill Ogden is an attorney with Kean Miller in Houston, Texas, and practices in the firm’s trial and appellate groups. His work focuses on commercial litigation and appeals, including matters involving communications law and the First Amendment, employment litigation, financial services, and energy-related disputes. His practice includes both state and federal courts. Bill is Board Certified in Civil Appellate Law by the Texas Board of Legal Specialization. He represents clients in Litig...

Charley Davidson leads the firm’s criminal defense practice, where he offers passionate, responsive counsel to guide clients facing state and federal charges in the areas of white collar and blue collar crime. Prior to joining Hanszen Laporte, he was a partner at a large international firm specializing in white collar defense, as well as a partner at a Houston-based criminal defense law firm. Charley also spent three years as an assistant U.S. attorney in the U.S. Attorney’s Offic...

Teresa Valderrama is a partner in the firm's Houston office. She has more than 25 years of experience representing employers in all aspects of workplace law, including corporate investigations and compliance, wage & hour collective action defense, and defense of all manner of discrimination, workplace harassment and other work-related claims. This includes advice and counsel regarding trade secrets/business-asset protection, defense of the Sarbanes–Oxley Act (SOX) and other whistleb...

Rick earned a BBA and a MBA from the University of Texas at Austin in accounting and finance. His JD is from the University of Houston. Rick is a recognized leader in real estate law in the State of Texas, and is board certified in Commercial and Residential Real Estate Law. He has a depth and breadth of experience in a variety of complex real estate matters. Rick has represented a wide range of businesses and individuals in purchases and sales, contracts, business conflicts, commercial trans...

Kelly D. Brown has practiced environmental, health, and safety (EHS) law since 1991, and is a shareholder in the firm’s EHS Section. Kelly’s legal practice is a broad-based one as he handles EHS-related litigation, transactional matters, remediation projects, and compliance counseling. Kelly defends corporate clients in various personal injury and toxic tort lawsuits and administrative proceedings brought by governmental agencies including the Texas Commission on Environmental Qua...