Elizabeth S. "Liz" Chatham

David practices in the area of environmental and natural resources law, focusing on environmental compliance auditing, Superfund, solid and hazardous waste, asbestos, water quality, underground storage tank, environmental management systems, environmental remediation and environmental due diligence matters. He has conducted over 120 comprehensive environmental audits throughout the United States and internationally over the past eight years. He was recently named among the 2013 Best Lawyers i...

David N. Horowitz is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law, Family Law Arbitration and Family Law Mediation. David N., who practices law in Phoenix, Arizona, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David N. is held by other top lawyers in the same geographic and legal practice area.

Kristen is considered one of the nation’s leading “Big Data” and HIPAA compliance attorneys. She also has deep experience in data breaches, health information exchange, data sharing for research and clinical integration initiatives, clinical research compliance, clinical trials contracting, and biobanking and genomic privacy. Kristen is a sought-after national speaker on these issues and has been active in national healthcare policy. She is Past President (2013-2014) of the ...

As an attorney and certified public accountant, Erik focuses his practice in all areas of federal tax law, with an emphasis on partnerships, limited liability companies, C and S corporations, real estate, international taxation, and civil tax controversy. He provides tax planning, structuring, and documentation for business and individual clients, including joint ventures and tax-exempt organizations. Prior to joining Gallagher & Kennedy, Erik was a Manager in the Washington National Tax ...

Tim Eckstein has developed a strong reputation in Phoenix and throughout Arizona as a criminal defense attorney and civil litigator. He has extensive experience representing clients against fraud charges and in internal investigations, particularly in health care, finance, education, and government. In 2019, Tim was named “Phoenix Lawyer of the Year” in Criminal Defense and White Collar Law by Best Lawyers®. Some of his trial cases have influenced statewide precedent, includin...

Matthew Millea is a top attorney recognized by Best Lawyers in the practice area(s) of Medical Malpractice Law - Plaintiffs, Personal Injury Litigation - Plaintiffs and Product Liability Litigation - Plaintiffs. Matthew, who practices law in Phoenix, Arizona, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Matthew is held by other top lawyers in the same geographic and legal practice area.

Kevin P. Nelson is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Construction. Kevin P., who practices law in Phoenix, Arizona, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kevin P. is held by other top lawyers in the same geographic and legal practice area.

Hannah concentrates on commercial litigation and has represented clients in a wide variety of areas such as breach of contract and fiduciary duties, fraud, business ownership disputes, construction litigation, and product liability. Prior to joining Gallagher & Kennedy, Hannah was a law clerk for Justice Robert M. Brutinel of the Arizona Supreme Court, where she worked on a multitude of legal issues, including issues concerning the Arizona and U.S. Constitutions, statutory interpretation ...

Peter’s focus is protecting businesses and securing their future through risk management, litigation, and dispute resolution. Peter has extensive experience litigating in Arizona state and federal courts and has represented businesses of all sizes in the Arizona Court of Appeals and the United States Court of Appeals for the Ninth Circuit. Peter routinely handles matters involving business litigation, commercial real estate disputes, insurance coverage, employment disputes, and commerci...

Steve Jackson, the firm's president, has been selected by The Best Lawyers in America® as the 2019 Phoenix "Lawyer of the Year" in Construction Litigation. His practice is concentrated in the areas of construction law, real estate law and commercial litigation, and he represents a broad range of individuals and businesses in the construction and real estate development industries. In addition to client representation, Steve has served as a mediator, arbitrator and expert witness in a numb...