Meet The Firm

Your legal needs are served

Hisey & Landgraf Law Office is dedicated to providing our clients in Ardmore and Southern Oklahoma with quality legal services. Our competent staff will endeavor to ensure all your legal needs are met. We have been practicing law for over 40 years in multiple areas including Estate Planning, Probate, Business Transactions, Commercial Law, Real Property, Guardianship, Adoptions, General Litigation, and more. We are here to serve our clients.

D Michael Hisey

D. Michael Hisey

D. Michael Hisey is admitted to practice before the Federal District Court for the Western District of Oklahoma, the United States Court of Appeals for the Tenth Circuit, and the United States Court of Military Appeals. He was admitted to practice law in the State of Oklahoma in 1972. Born in Ardmore, Oklahoma, Mr. Hisey graduated in 1969 from Central State College, majoring in English with minors in Philosophy and Government. He received his Juris Doctorate from the University of Oklahoma College of Law in 1972. Mr. Hisey was a Captain in the Marine Corps Judge Advocate Division from 1973-1977. He served as the First Assistant District Attorney for the Twentieth Judicial District of the State of Oklahoma from 1977-1978, then became Special District Judge for Carter County, Oklahoma, from 1978-1984. He has been in private practice since 1984 and has been the municipal Judge in Wilson, Oklahoma since 1989. Along with maintaining his long standing and reputable private practice, Mr. Hisey served as President of the Carter County Bar Association and has been active in civic affairs, serving on and chairing numerous civic boards, including the Arbuckle Area Council of the Boy Scouts of America, Children's Shelter, and Carter County Jail Advisory Board.

Justin Landgraf

Justin R. Landgraf

Justin R. Landgraf was admitted to the Oklahoma Bar Association in 2008. Mr. Landgraf attended Oklahoma State University, and received his Bachelor's of Science degree in Agri-Business in 2004. He went on to receive his Juris Doctorate from Oklahoma City University School of Law in 2008, where he was named to the Dean's Honor Roll. Mr. Landgraf served as Assistant District Attorney for the Twentieth Judicial District of the State of Oklahoma from 2008-2010 before joining D. Michael Hisey. In 2012, Mr. Hisey named Justin to partner and formed the firm of Hisey & Landgraf. Since 2010, Justin has focused his practice on business law, civil litigation, corporate law, energy and natural resources law and real estate matters. Justin has been named to Rising Star in Oklahoma for four (4) consecutive years (2015-2018) as a Civil Litigation Attorney: Defense. Justin has further been honored with the being selected by Lawyers of Distinction as being among the top 10% in the USA for years 2017 and 2018. Justin is presently licensed in the State of Oklahoma and the Eastern and Western District Courts of Oklahoma as well as the State of Texas and the Eastern District of Texas.

Alexa Stumpff

Alexa L. Stumpff

Alexa L. Stumpff was admitted to the Oklahoma Bar Association in April of 2017. Ms. Stumpff attended Oklahoma State University, where she obtained her Bachelor of Science in Multimedia Journalism in 2014. While attending Oklahoma State University she was an active member of Kappa Alpha Theta Fraternity. She went on to receive her Juris Doctor from the University of Tulsa College of Law in 2016. While at the University of Tulsa College of Law she completed the Tulsa Lawyers for Children training. She was also a member of Board of Advocates and Phi Alpha Delta Legal Fraternity.

Amy Burns

Amy L. Burns

Amy L. Burns serves two positions with the firm; she is the firm’s office manager as well as a legal assistant to all attorneys in the firm. Amy is a native of Ardmore, Oklahoma. Amy focuses on the firm’s probate, real property and transactional practice.

Susan Dodd

Susan M. Dodd

Susan M. Dodd is a Legal Assistant with 19 years experience, 12 of which are with the firm. She is the Legal Assistant to Attorney D. Michael Hisey and specializes in the legal fields of Estate Planning, Real Estate, Corporate Law and Adoptions. Susan is a native of Lone Grove, Oklahoma and attended Murray State College. She is also a member of the Oklahoma Paralegal Association.

Jennifer Key

Jennifer Key

Jennifer Key is a legal assistant who primarily focuses on the firm’s litigation practice. Jennifer attended the University of Central Oklahoma and obtained a Bachelor of Arts in English. She is currently enrolled in a paralegal program at Oklahoma State University.