he Illinois Supreme Court has suspended Yorkville attorney Mark A. Shlifka for three years, effective February 5, 2026.
Mr. Shlifka, licensed since 1988, served as First Assistant State’s Attorney for Kendall County in Illinois. The disciplinary complaint alleged three counts of misconduct. Count I, which Shlifka admitted, charged that he engaged in a conflict of interest and conduct prejudicial to the administration of justice, in violation of Illinois Rules 1.7(a)(2) and 8.4(d), by carrying on a personal relationship with a woman who was simultaneously the complaining witness in a domestic battery case he was prosecuting and the defendant in a DUI case prosecuted by an attorney he supervised. He concealed the relationship, and took her to California in violation of her bond conditions. Count II charged that he committed a criminal act under Illinois’s anti-recording statute by taking nude photographs of the woman while she was asleep. Count III charged battery.
The Hearing Board found Counts I and II proven and recommended a three-year suspension. On appeal, the Review Board dismissed Count II, finding insufficient evidence that Shlifka knew he lacked consent, and dismissed Count III as unproven. The Review Board also recommended a three-year suspension, but made it retroactive to April 24, 2023. The Illinois Supreme Court ultimately entered a three-year suspension effective February 5, 2026. Based on the public record, it is not clear whether the Court adopted the retroactive date recommended by the Review Board or imposed the suspension prospectively.
