Patrick Luff

As a founding partner of Lyons & Simmons, Christopher Simmons focuses his practice on representing clients in complex civil litigation involving wrongful death, catastrophic personal injuries, product liability, complex business disputes, construction defects, and professional liability. He has a well-earned reputation as a trial lawyer who combines a tireless work ethic with a creative, “outside the box” approach to achieve outstanding results for his clients. Simmons believe...

David Lisch focuses his practice on virtually all aspects of patent litigation, along with trademark and copyright prosecution and litigation, for a variety of industries and technologies. His engineering background, coupled with his tailored IP experience, allows him to more easily evaluate and work to solve his clients’ issues. His patent litigation work involves performing pre-filing infringement analysis and drafting of claim charts through trial, including reviewing and analyzing a...

Doug Rees has an extensive trial practice with an emphasis in construction law and insurance litigation matters. He represents clients before state and federal courts as well as in arbitration proceedings and before disciplinary and licensing boards and advises clients in all aspects of their business. Doug represents general contractors, subcontractors, design professionals, including architects and engineers, insurance carriers, businesses and individuals. He advises and defends clients in ...

Mark Johansen's practice focuses on complex commercial litigation in state and federal courts. He also regularly represents clients in arbitration proceedings before the American Arbitration Association (AAA), Judicial Arbitration and Mediation Services (JAMS), and the Financial Industry Regulatory Authority (FINRA). Mark has handled litigation and arbitrations involving mergers and acquisitions, contract disputes, business torts, labor/employment, trade secrets, securities/shareholder litiga...

James B. Harris is a top attorney recognized by Best Lawyers in the practice area(s) of Environmental Law and Litigation - Environmental. James B., who practices law in Dallas, Texas, has been recognized since 1989. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James B. is held by other top lawyers in the same geographic and legal practice area.

David Clouston has been practicing securities, commercial and employment litigation in Dallas, Texas since 1993. With a reputation for unparalleled advocacy in state and federal court, as well as in various arbitration forums, he works closely with brokerage firms, oil, gas and chemical companies, manufacturers and distributors, real estate brokers and agents, and wholesale/retail businesses in a variety of matters, including litigation avoidance, customer disputes and claims, employment and ...

James Voelker is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. James, who practices law in Dallas, Texas, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James is held by other top lawyers in the same geographic and legal practice area.

Timothy E. Taylor is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Timothy E., 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 Timothy E. is held by other top lawyers in the same geographic and legal practice area.

Tony Magee is an Oxford-educated, former English barrister, who has practiced law in Dallas since 1993. Before that, he practiced for nine years at the Chancery Bar in London. Tony focuses on the practice of intellectual property litigation and complex commercial litigation on both the plaintiff and defense sides. His experience includes patent infringement litigation in many technological areas, including telecommunications, including the field of inmate telephone systems, medical devices, s...

Grant Liser focuses his practice in the areas of personal injury, products liability, aviation litigation, medical malpractice, insurance and commercial litigation. He has extensive experience in the trial of jury cases from verdict through appeal. Mr. Liser has been listed in Best Lawyers in America since 1997 and in Texas Monthly Magazines's Super Lawyers since 2003. Mr. Liser has been admitted to practice in Texas, Louisiana, U. S. District Courts for the Northern District of Texas, the Fi...