About William
William Barton graduated from Southern Illinois University School of Law in 2013. He completed his legal education there and went on to obtain licensure to practice in both Missouri and Illinois. His training at SIU provided the foundation for a career that has included roles in both private practice and specialty firms.
Early in his career Barton worked at Onder Law Office beginning in 2017. He took on responsibilities typical of a small-firm attorney: handling client intake, conducting legal research, preparing filings and appearing in court where required. That period gave him day-to-day courtroom exposure and experience managing client matters from intake through resolution.
In 2020 he joined SI Elder Law. There he worked inside a practice that serves older adults and their families. His work at that firm involved counseling on issues that commonly affect aging clients and their caregivers. He handled casework that required careful attention to statutory requirements and the practical realities clients face when planning for long-term care and related concerns.
Barton maintains professional ties through local and state organizations. He has been a member of the Bar Association of Metropolitan St. Louis since 2017. He has also belonged to the Missouri Association of Trial Lawyers since 2017. Those memberships have kept him connected to peers and the regular developments that affect litigation and client services in the region.
Today he operates under the name William Barton Lawyer at Law. He runs a practice that serves clients in the jurisdictions where he is licensed. His practice blends experience from his time at a general civil firm and an elder-focused practice.
Colleagues describe Barton as methodical and straightforward in his approach to client matters. He emphasizes clear advice and step-by-step explanation of options. In his work he balances courtroom experience with practice-level attention to paperwork and process, aiming to keep clients informed as cases progress.
Outside of specific case work, Barton follows legislative and regulatory changes that shape practice in Missouri and Illinois. He has continued his involvement with local bar activities and trial lawyer programs. His current practice focuses on serving individuals and families across Missouri and Illinois through his office, William Barton Lawyer at Law.
