Illinois

For Illinois, document required is affidavit; filing deadline is attached to the original and all copies of the complaint; who must sign is the plaintiff's attorney or the plaintiff, if the plaintiff is proceeding pro se; consequence of non-compliance is grounds for dismissal under Section 2-619; statute or rule citation is 735 ILCS 5/2-622, recorded from its source on 2026-09-02.

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

a health professional who the affiant reasonably believes: (i) is knowledgeable in the relevant issues involved in the particular action; (ii) practices or has practiced within the last 6 years or teaches or has taught within the last 6 years in the same area of health care or medicine that is at issue in the particular action; and (iii) is qualified by experience or demonstrated competence in the subject of the case;

— ilga.gov, retrieved 2026-09-02

Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

— all from ilga.gov, retrieved 2026-09-02

Source

• ilga.govhttps://www.ilga.gov/legislation/ilcs/fulltext.asp?DocName=073500050K2-622

Last verified against source: 2026-09-02. Due for re-check by 2027-09-02. This page as Markdown · OKF bundle · full dataset as JSON.