About us

Founded in 2000, Hennessey Law Firm, LLC, led by Cynthia M. Hennessey, offers expert legal representation with a medical edge. As a Registered Nurse and seasoned trial attorney, Cynthia brings over 30 years of experience to Workers’ Compensation and Personal Injury cases across Missouri and Illinois. She is joined by Rebecca C. Long, an experienced attorney dedicated to fighting for the rights of injured workers and accident victims. As a women-led firm, we bring a unique perspective, unmatched dedication, and a compassionate yet aggressive approach to securing justice for our clients. With backgrounds as former insurance defense attorneys, we know the insurance playbook—now we’re on your team. What sets us apart? - Medical & Legal Expertise – We don’t just know the law; we understand your injuries. - Personalized Representation – Every client receives dedicated, strategic legal advocacy. - Proven Results – Thousands of successful cases, millions recovered for clients. - Former Insurance Defense Attorneys – We anticipate the other side’s tactics to maximize your case value. At Hennessey Law, we are committed to aggressive advocacy and compassionate representation, ensuring injured workers and accident victims receive the maximum compensation they deserve. Serving Missouri and Illinois. Call us today for a free consultation!