In re The Parentage of C.E.S.

Overview

The Second District affirmed the trial court's dismissal of a pro se mother's amended motion seeking modification of child support, child-related expenses, and indirect civil contempt, holding that the motion was barred by res judicata because the same claims had been fully litigated and decided against her at a prior evidentiary hearing. The court also found the mother's appellate arguments largely forfeited for failure to comply with briefing rules.

Key Facts

• Parents shared 50/50 custody under a 2014 paternity judgment; father paid $550/month child support and each party was responsible for their own child-care expenses.
• Mother filed multiple successive motions (August 2024, October 2024 via counsel, February 2025, and March 2025) seeking modification of child support, proportionate division of child-related expenses, and contempt findings.
• At the April 17, 2025 evidentiary hearing, mother admitted no dispute over incomes, no substantial change in parenting schedule or extracurricular activities, and failed to introduce supporting exhibits.
• The trial court found mother's income had actually increased and that applying the statutory formula would have decreased father's support obligation.
• Mother then filed yet another amended motion on March 25, 2025, raising the same issues.

Procedural History

Circuit Court of McHenry County (No. 13-FA-26, Judge Zalud). Mother's August 2024 motion was dismissed October 1, 2024. Counsel filed an amended motion October 8, 2024, then withdrew. Mother's February 2025 amended motion was partially dismissed; the surviving count proceeded to an April 17, 2025 hearing where the court granted a directed finding for father on all claims. Mother's March 25, 2025 amended motion was dismissed on June 27, 2025, on res judicata grounds. Mother appealed to the Second District.

Holdings

1. Res judicata barred the March 25, 2025 amended motion because all three elements were met: (1) a final judgment on the merits at the April 17, 2025 hearing; (2) identity of cause of action (same child support, expense division, and contempt claims); and (3) identical parties. The trial court's dismissal was affirmed.
2. Mother's appellate arguments were forfeited under Illinois Supreme Court Rule 341(h)(7) for failure to provide citations to the record, reasoned analysis, and for raising authorities (Rules 11, 12; Judicial Conduct Rule 2.2h) not presented to the trial court.

Legal Principles

• Res judicata: Three-part test from Hudson v. City of Chicago, 228 Ill. 2d 462 (2008)—bars not only what was decided but what could have been decided.
• 750 ILCS 5/510(a): Modification of child support requires proof of a substantial change in circumstances.
• Sections 2-615 and 2-619 of the Code of Civil Procedure (735 ILCS 5/2-615, 2-619) governed the combined motion to strike and dismiss.
• Pro se status does not excuse compliance with briefing rules. Litwin v. County of LaSalle, 2021 IL App (3d) 200410.

Practical Implications

• Directed findings on support modifications are final judgments on the merits that trigger res judicata—practitioners should ensure all evidence and exhibits are presented at the initial hearing.
• When opposing serial pro se filings, a combined 2-615/2-619 motion citing res judicata is an effective tool; document the identity of claims across successive motions.
• A movant seeking child support modification must present actual evidence of substantial change; mere argument about income disparity is insufficient, especially when financial affidavits show income has increased.
• Counterargument: A party could potentially file a new modification petition based on genuinely new changed circumstances arising after the prior adjudication—res judicata would not bar truly new facts.

Limitations/Caveats

This is a Rule 23(b) order with no precedential value except under the narrow circumstances of Rule 23(e)(1). The court's merits discussion was expressly secondary to its forfeiture finding, meaning even the res judicata analysis could be characterized as alternative. The opinion does not break new legal ground but applies well-established res judicata principles to serial modification filings.