David is a graduate of Dominican College where he pursued a triple major graduating in three and a half years, was active in college and community theater, was president of Lambda lota Tau literary honor society and lettered in varsity cross country. He attended law school at Southern Illinois University and at the University of Colorado. While at SIU he spent a year working with the prison legal aid program, was a charter member of the Stephen A. Douglas Chapter of Phi Alpha Delta Law Fraternity and later served as a Chapter Justice. Mr. Stjern is a member of the Illinois Bar Association and the American Trial Lawyers Association. He is a certified intervenor with the Lawyers Assistance Program of the Illnois State Bar Associaiton.

David concentrates his practice in the area of personal injury with an emphasis on car, truck and motorcycle collisions, premises liability, medical negligence, wrongful death, and uninsured motorist arbitrations. He has numerous jury verdicts and significant settlements to his credit. He also maintains an active probate practice including decedent's estates, guardianships and appellate practice. Mr. Stjern is admitted to practice in the States of Illinois and Wisconsin as well as the Seventh Circuit Court of Appeals.