Brant C. Martin

In complex business, technology, and intellectual property matters involving parties and interests around the country and beyond, John DeGroote has served as a mediator and arbitrator in significant disputes since 2013. His experience as a litigator, corporate counsel and business executive brings rare and valuable perspective to dispute resolution. Mr. DeGroote previously served as chief litigation counsel to KPMG Consulting, LLC/BearingPoint, Inc., a $3 billion global consulting firm with a...

Jessica began her law career as a paralegal, and it shows: Paralegals get things done. She’s smart, too. Jessica graduated magna cum laude from Texas Woman’s University, and later, while earning her law degree at the Texas A&M University School of Law, she served as Vice President of the Family Law Student Association and represented clients in the school’s Family Law Legal Clinic. “I knew from the start that I wanted to be a family law attorney,” says Jessic...

David Guedry is a partner in the Dallas office. He is nationally recognized for more than 25 years of leadership in advising global service providers and Fortune 1000 companies on complex outsourcing relationships, including assisting with developing legal, operational, and business strategies, and translating strategy into the practical negotiation and documentation of deals. David has significant experience managing the complexities of IT and telecommunication outsourcing agreements; busine...

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

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

Charlie Frazier’s successful argument before the Supreme Court of the United States is just one highlight in a distinguished appellate practice in both federal and state courts. For over 32 years, Charlie has assisted trial lawyers with legal strategy and handled appeals in variety of matters, including complex commercial disputes, insurance-related issues, and professional-malpractice claims. Charlie has argued many cases before the United States Court of Appeals for the Fifth Circuit ...

Larry L. Martin is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Larry L., who practices law in Addison, Texas, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Larry L. is held by other top lawyers in the same geographic and legal practice area.

Turner Thornton is a highly-regarded Fort Worth family law attorney who leads Varghese Summersett’s Family Law Division. A skilled negotiator and experienced litigator, Turner has successfully guided hundreds of individuals and families through the most tumultuous time of their lives. Divorce, child custody disputes, and property division are among the most contentious and complex cases in the legal system. Turner understands the intricacies and complexities involved in family law and w...

Daryl J. Sinkule is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Individuals and Litigation - Labor and Employment. Daryl J., 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 Daryl J. is held by other top lawyers in the same geographic and legal practice area.

Sandy Liser focuses her practice on workers’ compensation law, personal injury defense, products liability law, insurance subrogation and medical malpractice. She is a Fellow of the Texas Bar Foundation and a skilled presenter in her fields of expertise. She was listed as a Top Attorney in Tarrant County by Fort Worth, Texas magazine in 2003 and has been listed in Texas Super Lawyers (Thomson Reuters Legal) since 2005. Ms. Liser received her J.D. degree from Baylor University School of ...