Rhiannon was born and raised in Iowa and moved to Oklahoma to attend the University of Tulsa, where she earned a degree in Psychology. While working in the social services field, Rhiannon went on to receive a Master's in Human Relations from the University of Oklahoma. She then returned to the University of Tulsa and graduated from law school in 2009. While in law school, Rhiannon served as the Executive Editor for the Tulsa Law Review, and her article was selected for publication.  She earned several awards and distinctions including graduating with Highest Honor, Order of the Curule Chair, a Certificate in Health Law, the Robert C. Butler Award for Excellence in Legal Scholarship and Writing, and numerous CALI awards.


Rhiannon spent four years as a federal law clerk for a Magistrate Judge in the Northern District of Oklahoma. Having spent several years working for the federal courts, she has a strong foundation in advocacy and legal research and writing. In 2018, Rhiannon was recognized as a “Rising Star” by Super Lawyers Magazine, an award reserved for the top 2.5 percent of lawyers within the state. 


Rhiannon is a partner of the firm, and her practice is focused on litigation. She helps clients resolve disputes involving a wide range of complex and general matters, including but not limited to insurance defense, construction, employment, contract issues and personal injury. She has litigated in state and federal court, as well as in arbitration proceedings. Rhiannon is licensed to practice in Oklahoma, Iowa, and Minnesota.


Outside of work, Rhiannon enjoys spending time with her husband and two active daughters. She participates in volunteer and pro bono activities and has a special interest in advocating for victims of crime.

Areas of Practice

Civil Litigation
Construction Litigation

Employment Litigation
Professional Liability

Insurance Defense

Personal Injury

Products Liability


University of Tulsa (B.A., cum laude)

University of Oklahoma (M.H.R.)

University of Tulsa College of Law (J.D., with Highest Honor)

Bar Admissions

State of Oklahoma

State of Iowa

State of Minnesota

U.S. District Courts (Northern, Western, & Eastern Districts of Oklahoma, Southern District of Iowa)


Oklahoma Bar Association

Iowa Bar Association

Tulsa County Bar Association

Inns of Court

Roberson, Kolker, Cooper & Goeres, P.C.

16408 Muirfield Place

Edmond, Oklahoma 73013

Telephone:    (405) 606-3333

Facsimile:      (405) 606-3334