About

For more than 60 years, Leach & Sullivan, Limited Liability Partnership has been a cornerstone of the Duncan community, serving individuals and families throughout southern Oklahoma. While other firms have come and gone, our firm remains and has been trusted by clients for decades. Many of our clients are children and grandchildren of original clients, passed down through the generations due to our ability to get results and to deliver exceptional customer service.

Everyone who walks through our door is treated like family and provide the same degree of exceptional representation we would provide our own family.

We understand that many of our clients come to us in some of the most difficult times of their lives, and our attorneys are committed to leveraging their experience and legal abilities to advocate for the best possible outcome — and one that will set our client up for a more secure and happy future.

Our firm provides representation in all types of legal matters, including family law, criminal defense, real estate, business litigation, business organizations, banking law, personal injury, probate, estate planning, and oil and gas law.

Firm History - Six Decades Of Commitment To Duncan And Southern Oklahoma

Our firm was founded in 1954 by William O. Leach, Paul D. Sullivan, and Patrick D. Sullivan. The family tradition continued with Michael P. Sullivan joining the firm in 1972 and Kent P. Sullivan joining the firm in 1981. After William O. Leach passed away in 1990, longtime Duncan resident Jay B. Watkins became a partner after joining the firm in 1987.

We have served our community for generations, and are proud of our well-established reputation in the legal profession and the community at large. We continue to be involved in community activities, such as providing pro bono legal advice at Legal Aid, membership in the Kiwanis, work for the United Way, support of local sports teams in Duncan, and donating funds to the Duncan Public Schools Foundation and the Project Graduation lock-in.

Treating Our Clients Like Family

We cultivate personal relationships with our clients and encourage them to refer their family and friends to our firm for continuing legal needs. Indeed, many of our clients are referred to us from other satisfied clients, as well as other attorneys, and many of these clients choose to continue allowing us to represent them for the various legal issues that arise through the years.

We are an old-fashioned firm that believes in responsive attention to our clients' needs. We prefer to meet with clients face-to-face - and we strive to develop a relationship where our clients are on a first name basis with the attorneys and staff.

Meet the Staff of Leach & Sullivan

We employ a staff of legal assistants with many years of experience. Our legal assistants are:

Shari Sullivan. Shari has been the legal assistant for Kent P. Sullivan since January of 1987. Her e-mail is shari@leachsullivan.com.

Kimberly Jackson. Kimberly has been the legal assistant for Jay B. Watkins since August of 2005. Her e-mail is kimberly@leachsullivan.com.

Tammie Deaton. Tammie has been a legal assistant with the firm beginning in January of 1999. Her e-mail is tammie@leachsullivan.com.

Judy Robinson. Judy has been the legal assistant for Michael P. Sullivan since May of 2010. Her e-mail is judy@leachsullivan.com.

Kayla Alfaro. Kayla has been the legal assistant for Joshua A. Creekmore since January 2014. Her e-mail is kayla@leachsullivan.com

Legal Help Is Just A Phone Call Away

If you have any questions, or would like to speak with one of our lawyers regarding your legal issue, please do not hesitate to call us at 580-255-1111, or send a contact form by email. We look forward to hearing from you!