Lance Leffel

Len Cason is a lawyer recognized by Best Lawyers in the practice areas of Corporate Law, Tax Law and Trusts and Estates. Len practices law in Oklahoma City, Oklahoma Best Lawyers has recognized Len Cason since 1993. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Len Cason is held by other lawyers.

David has significant trial experience with complex commercial, intellectual property, trust and estates, tax, energy, and environmental litigation matters in both state and federal courts. He has successfully tried to verdict complex litigation matters in state and federal courts, and under the rules of the American Arbitration Association. He has successfully argued before state and federal appellate courts. In addition, he has experience with matters before state and federal administrative...

Adam R. Banner is an Oklahoma City criminal defense attorney whose practice is devoted to representing individuals facing serious criminal charges, investigations, trials, and appeals in Oklahoma state and federal courts. He is the founder of The Law Offices of Adam R. Banner, P.C., which also operates under the trade name Oklahoma Legal Group , and represents clients throughout Oklahoma in complex and high-stakes criminal matters. Banner has extensive experience defending serious felony case...

As a founding partner at Ball Morse Lowe PLLC , Zach focuses his practice on oil, gas, and energy matters , business law , and Real Estate Law , serving clients in Oklahoma City, Oklahoma and across the region. He approaches each matter with an appreciation for his clients’ time and resources, working to provide practical, efficient, and cost-conscious legal solutions for complex legal and business issues. Zach represents companies operating throughout Oklahoma, North Dakota, Montana, W...

Melissa began her legal career in-house with a Fortune 500 oil and gas company. Since that time, her practice has focused on oil, gas, and energy law , including the preparation of drilling and division order title opinions across Oklahoma, Texas, and North Dakota. Her work frequently involves the preparation of curative documents, probate-related matters, and support in litigation for oil, gas, and renewable energy clients. In addition to her energy law practice, Melissa represents clients i...

Kirke Kickingbird is a lawyer recognized by Best Lawyers in the practice areas of Gaming Law and Native American Law. Kirke practices law in Oklahoma City, Oklahoma Best Lawyers has recognized Kirke Kickingbird since 2022. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Kirke Kickingbird is held by other lawyers.

Amy brings more than 25 years of experience in trial and appellate practice, with a career shaped by leadership roles and in-depth involvement in Family Law matters. Her background includes serving with Oklahoma Child Support Services, where she helped lead the state’s implementation of the Uniform Parentage Act, as well as her service as a District Judge for the Cherokee Nation. This range of experience provides her with a well-rounded understanding of family law issues affecting indiv...

David A. Branscum is a lawyer recognized by Best Lawyers in the practice area of Medical Malpractice Law - Defendants. David A. practices law in Oklahoma City, Oklahoma Best Lawyers has recognized David A. Branscum since 2026. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which David A. Branscum is held by other lawyers.

Jessica Hatcher is a lawyer recognized by Best Lawyers in the practice areas of Energy Law and Oil and Gas Law. Jessica practices law in Oklahoma City, Oklahoma Best Lawyers has recognized Jessica Hatcher since 2024. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Jessica Hatcher is held by other lawyers.

David B. Donchin’s practice includes Insurance Law, Complex Litigation, Personal Injury Law, Products Liability, Employment Law, Environmental Law, and Medical Malpractice. In addition to his legal practice, David has served as an Adjunct Professor for Trial Practice at the University of Oklahoma College of Law and as a member of the faculty of the Southern Region of the National Institute of Trial Advocacy. David served as the Managing Director of Durbin Larimore Bialick from 2014 to 2...