Martin Valko

Shareholder Heidi Storz is an attorney with more than 25 years of experience representing clients in construction-related disputes. Her practice focuses on Commercial Litigation, Litigation – Construction, and Construction Law . Based in Broomfield, Colorado, Heidi works with Kerrane Storz PC and regularly handles complex construction defect matters involving residential and commercial projects. Heidi is known for developing a thorough understanding of the engineering, architectural, an...

Proven hustle. Unrivaled grit. Bold execution. Daniel has spent years on the front lines of high-stakes litigation in both federal and state courts throughout the country, coast to coast, and international arbitrations around the world. He is equally comfortable in a courtroom talking to a jury as he is in a boardroom talking to executives or on a gravel road talking to witnesses. Daniel uses a combination of experience, intellect, grit, and compassion to achieve his client’s goals. And...

Lisa Prather focuses her practice on health care regulatory and compliance matters. She also handles mergers and acquisitions, corporate governance and other health care industry-related special projects. Lisa's clients are from diverse sectors of the health industry. These include hospital systems, physician groups, pharmacies and other professionals. Lisa assists her clients in meeting their business goals while navigating the increasingly complex health care regulatory environment. Her uni...

Frank D. Davis is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management. Frank D., who practices law in Dallas, Texas, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Frank D. is held by other top lawyers in the same geographic and legal practice area.

P. Keith Staubus is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Trusts and Estates. P. Keith, who practices law in Dallas, Texas, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which P. Keith is held by other top lawyers in the same geographic and legal practice area.

Kelly Franklin Bagnall is a top attorney recognized by Best Lawyers in the practice area(s) of Leisure and Hospitality Law and Real Estate Law. Kelly Franklin, who practices law in Dallas, Texas, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kelly Franklin is held by other top lawyers in the same geographic and legal practice area.

Paul M. Leopold is a double Board Certified attorney in Family Law and Civil Appellate Law by the Texas Board of Legal Specialization. He focuses on family law appeals, helping clients across Texas protect their rights in difficult legal situations—like divorce, custody battles, child support issues, or international child abduction cases. With years of experience arguing in both state and federal courts, Paul has a proven track record of handling complex family law appeals. He works cl...

Marianne M. Auld is the managing partner of Kelly Hart and the chair of the firm’s Appellate section. She has briefed and argued dozens of appeals in both state and federal courts of appeals. Ms. Auld began her career as a law clerk on the United States Court of Appeals for the Fifth Circuit. Following her clerkship, she joined Kelly Hart as an associate in the firm’s litigation section, where she worked on a wide range of civil matters for clients including governmental entities ...

Larry D. Grayson is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Defendants and Product Liability Litigation - Defendants. Larry D., who practices law in Dallas, Texas, has been recognized since 2022. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Larry D. is held by other top lawyers in the same geographic and legal practice area.

Donald E. Herrmann has over thirty-five years of trial and appellate experience in civil litigation, representing individual and commercial clients as both plaintiffs and defendants in matters as diverse as business torts, intellectual property claims, construction disputes, employment disputes, and various contract and property rights claims. He also writes and lectures frequently at state and local continuing legal education programs.