Marisa O'Sullivan

An accomplished trial lawyer, Darren Nicholson has been trying cases in state and federal courts for more than twenty years. After beginning his career at Arnold & Porter LLP in Washington D.C., one of the country’s premier law firms, he returned to Dallas in 2008 and became a partner at the nationally-recognized trial boutique Sayles Werbner PC. Darren joined Burns Charest LLP in 2019 with one goal in mind – to help build one of the premier trial firms in the country. Darren&...

David, who once was described at a national legal symposium as the “Swiss Army Knife of IP Attorneys,” is a highly respected figure in the legal field renowned for his extensive and diverse expertise. He holds the distinction of being a registered patent attorney in the U.S. and Canada, a first-chair federal litigator, and the external general counsel for a group of privately held companies. With a client-focused approach built on a wealth of experience, David is an exceptional re...

Zachary T. Mayer is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Insurance. Zachary T., who practices law in Dallas, Texas, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Zachary T. is held by other top lawyers in the same geographic and legal practice area.

Jessica B. Magee is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Securities. Jessica B., 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 Jessica B. is held by other top lawyers in the same geographic and legal practice area.

Ben Martin has dedicated his career to helping individuals and families whose lives have been shattered by catastrophic injury and wrongful death. He has represented thousands of clients, from people injured in the oilfield to those harmed by medical negligence and dangerous products, including defective machinery, medical devices and pharmaceuticals. He has tried numerous cases to verdict in Texas, Mississippi, Wisconsin, California and Arkansas and has represented people in all 50 states. A...

Wade McClure, a Partner of the Firm in the Dallas office, primarily represents companies and individuals in complex commercial litigation, including business divorce cases, fiduciary duty litigation and fraud litigation. Wade also works on matters involving claims of minority shareholder oppression, investment fraud, and oil and gas disputes. Over the past thirty years, Wade has also represented manufacturers in products liability matters throughout Texas and the Southwest. Wade is a seasoned...

Danielle Senn Sessions is an experienced, board-certified construction attorney and the founder of Senn Sessions, PLLC. She serves clients' needs relating to commercial construction contracts and early dispute resolution, commercial real estate transactions, general business advising and legal training. Mrs. Sessions has represented contractors, developers, owners and specialty contractors for over fifteen years and has served in roles as both outside and in-house counsel. Her breadth of know...

Kevin Vela is a top attorney recognized by Best Lawyers in the practice area(s) of Corporate Law, Gaming Law and Mergers and Acquisitions Law. Kevin, 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 Kevin is held by other top lawyers in the same geographic and legal practice area.

Jacqueline C. Johnson devotes her practice to employment litigation and counseling, with particular experience in trade secret and wrongful competition litigation and drafting and enforcement of multi-state compliant non-competition agreements. She has handled several high-profile "bet the company" non-competition matters, one of which recently garnered national attention. Co-chair of the firm’s Unfair Competition and Trade Secrets Practice Group, Jackie regularly authors client updates...

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