Jack has practiced almost exclusively in the areas of coverage and appellate law since 1990, except for the occasional foray into civil rights defense or commercial litigation. He is a 1979 graduate of the University of Texas School of law and a Phi Beta Kappa graduate of the University of Texas. Jack is AV rated by Martindale-Hubbell. Jack joined the firm in 2000, having been a longstanding partner with Brian Chandler since 1981 at a prior law firm.

Jack was a board certified personal injury trial lawyer in the 1980s, including maritime and civil rights lawsuits, but left that field in 1990 for an insurance coverage and appellate practice. Jack’s work since 1990 has consisted of writing coverage opinions, litigating coverage and extra-contractual lawsuits, and handling appeals. His extra-contractual lawsuits are primarily third party—defending an insurer in a dispute over the existence of liability coverage. Jack has tried at least 30 lawsuits, handled almost 50 appeals, and written or edited more than 1,000 coverage opinions. He seeks to avoid trial via summary judgment yet—unlike many coverage lawyers—he has extensive and successful trial experience.