St. Thomas Legal, LLC is a full-service law firm based in O’Fallon, Missouri, specializing in family law, estate planning, business law, criminal defense, traffic law, and personal injury. Founded in 2014 by attorney Peter Lassiter, the firm stands out for its compassionate, client-centered approach, guided by the motto “Pray, Hope, Don’t Worry.”
With over 15 years of legal experience, including a background as a prosecuting attorney and military service, Peter Lassiter leads a dedicated team that prioritizes personalized service, transparency, and diligent case management. The firm is committed to alleviating client stress by offering free 30-minute consultations to understand individual needs and develop tailored legal strategies. St. Thomas Legal serves individuals, families, and small businesses seeking reliable and experienced representation across a broad range of legal matters.
Services Offered
- Family Law (dissolution, divorce, non-contested cases, paternity, family matters)
- Estate Planning (last will and testament, power of attorney, healthcare directives)
- Business Law (business formation, startup guidance, business-related legal services)
- Criminal Defense (DWI/DUI, criminal theft, felonies, orders of protection)
- Traffic Law (minor to high-speed violations, through partner firm The Traffic Law Firm of Missouri)
- Personal Injury (accidents, slip and fall cases, medical bill and injury claims assistance)
The firm serves clients in Missouri and offers flexible appointment availability, including weekends by appointment. With a focus on clarity and client education, St. Thomas Legal ensures clients feel supported and informed throughout their legal journey.
