Landon Long

Amy J. Sine is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Trusts and Estates, Nonprofit / Charities Law and Trusts and Estates. Amy J., who practices law in Oklahoma City, Oklahoma, has been recognized since 2003. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Amy J. is held by other top lawyers in the same geographic and legal practice area.

Katherine Taylor Loy has practiced law since 1992 and concentrates on Insurance Law, Litigation, Personal Injury, and Products Liability. She has been admitted to practice in Oklahoma, the U.S. District Court, Eastern, Northern and Western Districts of Oklahoma, the U.S. Court of Appeals, Tenth Circuit, and the U.S. Supreme Court. Katherine belongs to the Oklahoma County and Oklahoma Bar Associations and earned her Juris Doctor from the University of Oklahoma. She graduated with honors as a m...

For more than thirty years, Mr. Hiltgen has focused his practice in the areas of products liability defense, insurance defense, commercial litigation, and transportation litigation. He continues to add to that experience through the representation of companies of consumer goods and products, manufacturing industries and the insurance market. Mr. Hiltgen and his firm have represented a number of national and international corporations, serving as national, regional, and local trial counsel. Mr...

Brandon D. Kemp is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Brandon D., who practices law in Oklahoma City, Oklahoma, has been recognized since 2024. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brandon D. is held by other top lawyers in the same geographic and legal practice area.

Mary H. “Molly” Tolbert is a litigator, with a focus on antitrust, securities, constitutional, and appellate matters. She has appeared on behalf of clients before numerous state and federal courts, as well as in administrative and regulatory proceedings. She has significant experience in drafting and arguing critical motions and appellate briefs, with recent successful oral arguments before the U.S. Courts of Appeals for the Second and Ninth Circuits, as well as the Southern Distr...

Ashley Powell is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Family Law. Ashley, who practices law in Oklahoma City, Oklahoma, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ashley is held by other top lawyers in the same geographic and legal practice area.

John J. Griffin III is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships), Closely Held Companies and Family Businesses Law, Commercial Transactions / UCC Law, Corporate Law, Litigation - Real Estate, Mergers and Acquisitions Law and Real Estate Law. John J., who practices law in Oklahoma City, Oklahoma, has been recognized since 2016. This recognition is based on an exhaustive peer-review survey, reflecting the high e...

Lori F. Winland is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Lori F., who practices law in Oklahoma City, Oklahoma, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Lori F. is held by other top lawyers in the same geographic and legal practice area.

Erin Oakley is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Erin, who practices law in Oklahoma City, Oklahoma, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Erin is held by other top lawyers in the same geographic and legal practice area.

Gary W. Derrick specializes in corporate and securities law, including mergers and acquisitions, ’34 Act reporting, private equity and debt financing, venture capital financing, business formation and restructuring, corporate governance, and general business contracts. His clients are in oil and gas, technology, hospitality, agriculture, manufacturing, retail and professional services.