J. Renley Dennis

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...

Stacey D. Spivey's practice focuses on estate planning and trust and estate administration and litigation. Ms. Spivey works with individuals to prepare and implement their estate plans to meet family, tax and other goals, including business succession planning. She also works with individuals and fiduciaries on the management and settlement of trusts and estates, including probate administration, preparation of federal estate and gift tax returns, and estate and trust litigation matters. Ms. ...

Born Ponca City, Oklahoma, July 5, 1941; admitted to bar, 1966, Oklahoma. Preparatory education, Oklahoma State University (B.S., 1963); legal education, University of Oklahoma (J.D., 1966). Fraternity, Phi Alpha Delta. Assistant Attorney General, State of Oklahoma, 1968. (J.A.G.C., U.S. Army, 1966-68).

Michael J. Heron is a Partner in our Oklahoma City office with over 30 years of legal experience. He specializes in protecting the rights of individuals and businesses in civil cases involving medical malpractice, professional liability, construction, transportation, and insurance matters. Mike represents hospitals, practice groups, physicians, nurses, and other health care professionals in a wide range of litigation, policies and procedures, compliance, investigations, business transactions,...

J. Leslie LaReau is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law and Trusts and Estates. J. Leslie, who practices law in Oklahoma City, Oklahoma, has been recognized since 2012. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which J. Leslie is held by other top lawyers in the same geographic and legal practice area.

James D. Kallstrom is a top attorney recognized by Best Lawyers in the practice area(s) of Real Estate Law. James D., who practices law in Oklahoma City, Oklahoma, has been recognized since 2011. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James D. is held by other top lawyers in the same geographic and legal practice area.

Thomas J. Daniel IV is a top attorney recognized by Best Lawyers in the practice area(s) of Family Law. Thomas J., who practices law in Oklahoma City, Oklahoma, has been recognized since 2010. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Thomas J. is held by other top lawyers in the same geographic and legal practice area.

Crystal Johnson is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Corporate Law, Litigation - Labor and Employment and Litigation - Real Estate. Crystal, who practices law in Oklahoma City, Oklahoma, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Crystal is held by other top lawyers in the same geographic and legal practice area.

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.

R. Ryan Deligans began practicing law in 2003 and received his Juris Doctorate from the University of Oklahoma College of Law where he was honored as the Outstanding Graduate in the area of Trial Practice and Procedure. His practice has been focused on complex litigation involving Insurance Law, Manufacturer’s Product Liability, and cases involving catastrophic injury or death. Ryan is annually selected by his peers for inclusion in Super Lawyers Magazine. He has been selected as a Top ...