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Texas & New Mexico Personal Injury Lawyer

  • Membership in ABOTA (American Board of Trial Advocates) is by invitation only.  Any trial lawyer who is of high personal character and honorable reputation, is a member of the Bar of the state, province, district, territory or country in which he or she practices and has met the qualifications as prescribed in Article III, Section 2 of the ABOTA Constitution, may become an ABOTA member upon nomination, election, and payment of initiation fees and dues.
  • Fellowship in the Litigation Counsel of America is based on an evaluation of the lawyer’s effectiveness and accomplishment in litigation and trial work and ethical reputation. Membership is limited to 3,500 Fellows, representing less than one-half of one percent of American lawyers. See Selection Process.
  • The Million Dollar Advocates Forum consists of lawyers who acted as principal counsel in at least one case that resulted in a verdict, award or settlement in the (present value) amount of $1 million or more (Million Dollar Advocates) or $2 million or more (Multi-Million Dollar Advocates). See Selection Process.
  • Martindale-Hubbell’s AV Preeminent is a significant rating accomplishment a testament to the fact that a lawyer’s peers rank him or her at the highest level of professional excellence.
  • Each year, Texas Super Lawyers recognizes the top lawyers in Texas via a patented multi-phase selection process involving peer nomination, independent research, and peer evaluation. The Texas lawyers who receive the highest point totals during this selection process are further recognized in Texas Super Lawyers Top Lists.
  • Top 100 is an invitation-only organization composed of the premier trial lawyers from each state or region who meet stringent qualifications as civil plaintiff and/or criminal defense trial lawyers. Selection is based on a thorough multi-phase objective and uniformly applied process which includes peer nominations combined with third-party research. Membership is extended only to the select few of the most qualified attorneys from each state or region that demonstrate superior qualifications of leadership, reputation, influence, stature and public profile measured by objective and uniformly applied standards.


As a boy growing up in Kilgore, John Sloan thought he might become a preacher some day. However, by the time he began his undergraduate studies at Baylor University, John made up his mind: He was going to be a trial lawyer.

John received his Bachelor of Business Administration degree from Baylor in 1977 and enrolled at Baylor Law School, where he began to hone his trial skills in the school’s renowned Practice Court.

He earned his J.D. in 1980 and returned to East Texas, joining a firm in Henderson.  John immediately began trying cases, including a murder trial just five weeks after he received his law license.

Two-and-a-half years after he started work at the law firm, John decided that he wanted to focus on personal injury cases. He moved to Longview and opened his own practice. He has been trying cases in East Texas and courts across the country ever since.

At the time he established The Sloan Firm, John says, he wanted to create a law firm that would provide exceptional personal service to its clients.

“I wanted us to not be a mill where people are just numbers and don’t have a lot of contact with the lawyers,” he says. “I wanted to be able to know my clients personally.”

In addition to offering clients a personal touch, John also provides zealous advocacy. He has achieved many multi-million-dollar verdicts and settlements for his clients, including a $10 million settlement in a case involving birth injuries.

His cases generally involve truck and auto accidents, defective products and oilfield accidents. He also focuses on brain injury cases. In 2016, a Florida jury returned a $3.4 million verdict for a client who had suffered brain injury after being struck by a truck.

While courtroom victories are satisfying, John finds that his practice provides many other rewards.

“I like the people I get to work with—the clients—and I like the people here in the office. I like the variety. I like the competition, the battle, the mental gymnastics, being able to outwit and outwork my opponents,” John says.

John’s commitment to the trial lawyer profession has extended to the prestigious Gerry Spence Trial Lawyers College in Wyoming. John attended the College in 1998 and joined the teaching staff in 2002. He was named to the Board of Directors in 2010 and as President in 2014.

He is a member of many other legal organizations, including the Litigation Counsel of America and Million and Multi-Million-Dollar Advocates Forums.

John also engages in community service. For several years, he served on the Board of Directors of Habitat for Humanity. He has also worked with Justice for Children, which provides pro bono legal advocacy for criminally abused children.  He has coached kids in just about every sport.

In his personal time, John enjoys being active and has participated in numerous triathlons. His primary interest is his small farm outside Longview, where he grows trees and unwinds from his busy law practice.  He is married to the former Dee Anne Allen from Tyler, Texas, and they have two children, Trey Sloan and Veronika Sloan.