Yes! You can use AI to fill out Illinois Circuit Court Eviction Summons and Proof of Service of Eviction Summons & Eviction Complaint (Form E-S 3507.3)
Form E-S 3507.3 is an Illinois Supreme Court-approved Eviction Summons used by plaintiffs (such as landlords or property owners) to initiate the eviction process against tenants or occupants in any Illinois Circuit Court. The form notifies defendants of the eviction lawsuit, provides mandatory court appearance information, outlines the defendant's legal rights, and includes a Proof of Service section completed by the sheriff or process server to document how and when the summons was delivered. It is a critical legal document that must be accepted in all Illinois courts and must be served on defendants at least 3 days before the court date (7 days in Cook County). Today, this form can be filled out quickly and accurately using AI-powered services like Instafill.ai, which can also convert non-fillable PDF versions into interactive fillable forms.
E-S 3507.3 is part of the
circuit court forms, complaint forms, court forms, eviction forms, Illinois court forms, proof of service forms and UK court forms categories on Instafill.
Form Complexity Index
Moderate
58 / 100
| Fillable fields | 140 |
| Pages | 6 |
| Fields per page | 23 |
| Sections | 27 |
| Conditional rules | — |
| Tables & lists | — |
| Instruction pages | — |
| Instafill Form ID | IF-ILLINOIS-CIRCUIT-COURT-EVICTION-SUMMONS-AND-PROOF-OF-SERVICE-OF-EVICTION-SUMMONS-EVICTION-COMPLAINT-FORM-E-S-35073 |
E-S 3507.3 has a moderate Form Complexity Index of 58/100 — 140 fillable fields across 6 pages. Instafill’s AI completes it accurately in under a minute.
Form specifications
| Form name: | Illinois Circuit Court Eviction Summons and Proof of Service of Eviction Summons & Eviction Complaint (Form E-S 3507.3) |
| Number of fields: | 140 |
| Number of pages: | 6 |
| FCI: | Moderate (58/100) |
| Language: | English |
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How to Fill Out E-S 3507.3 Online for Free in 2026
Are you looking to fill out a E-S 3507.3 form online quickly and accurately? Instafill.ai offers the #1 AI-powered PDF filling software of 2026, allowing you to complete your E-S 3507.3 form in just 37 seconds or less.
Follow these steps to fill out your E-S 3507.3 form online using Instafill.ai:
- 1 Navigate to Instafill.ai and search for or upload the Illinois Eviction Summons Form E-S 3507.3 to begin filling it out online.
- 2 Enter the county name, plaintiff's name, and all defendant names (including checking the 'Unknown Occupants' box if applicable) in the header section of the form.
- 3 Complete Section 1 by entering the defendant's primary and secondary address information, contact details, and selecting the method of service (Sheriff, special process server, or licensed private detective).
- 4 Fill in Section 2 with the plaintiff's complete contact information, including name, address, telephone number, email, and plaintiff type (landlord/owner, agent, association, or receiver).
- 5 Enter the court date, time, courtroom number, courthouse address, and any remote appearance information (call-in number or video conference details) in Section 3, using information provided by the Circuit Clerk.
- 6 Review the completed form for accuracy, ensure the case number assigned by the Circuit Clerk is entered on all pages, and save or print the form.
- 7 Submit the completed Eviction Summons to the Circuit Court by e-filing through an approved e-filing service provider, and provide copies to the sheriff or process server to complete the Proof of Service section (Pages 5–6) after serving the defendant.
Our AI-powered system ensures each field is filled out correctly, reducing errors and saving you time.
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Frequently Asked Questions About E-S 3507.3
E-S 3507.3 has a Form Complexity Index of 58 out of 100, placing it in the moderate complexity tier. This score is calculated deterministically from the form’s own structure using Instafill’s published Form Complexity Index methodology, so it can be reproduced and independently verified — it is not a subjective estimate.
For E-S 3507.3 specifically, the score reflects 140 fillable fields across 6 pages, grouped into 27 sections. The number of fields is the largest factor in the base score (weighted 36%), followed by how difficult those fields are to complete based on their type, where free-text and signature fields count for more than simple checkboxes (26%). The number of pages that actually contain fields (15%), the amount of conditional “fill-only-if” logic (16%), and how many sections the form is divided into (7%) account for the rest of the base. On top of that base, the index adds points for tables and repeating lists, bundled instruction pages, and dense page layouts — capturing difficulty the base alone can miss.
In practical terms, a moderate score means the form takes real effort: there are enough fields, pages and rules that errors are easy to make by hand. Instafill removes that effort entirely: our AI reads your information, maps each value to the correct field — including the conditional ones — and completes E-S 3507.3 accurately in under a minute, with every field available for you to review before you download. See exactly how the Form Complexity Index is calculated.
The Illinois Eviction Summons (form E-S 3507.3) is an official court document approved by the Illinois Supreme Court that notifies a tenant (Defendant) that a landlord or property owner (Plaintiff) has filed a case in court to have them evicted. It informs the Defendant of their court date and their legal rights, and it must be accepted in all Illinois courts. The form is free and available at ilcourts.info/forms.
The Plaintiff (landlord or property owner) fills out most of the form, including their own contact information, the Defendant's name and address, and the method of service. However, the Circuit Clerk fills in the Case Number and the court seal/witness date section, and the sheriff or process server fills in the Proof of Service section (pages 5–6). Do not complete the Proof of Service section yourself.
If you receive an Eviction Summons, you must attend court on the date and time listed in the summons — failure to appear can result in a default judgment against you, meaning the judge may order you to move and possibly pay the Plaintiff money. Read all attached documents carefully, review your rights on page 4 of the form, and consider contacting a lawyer or calling Illinois Court Help at 833-411-1121 for assistance.
If you do not appear in court on the scheduled date, the judge will only hear the Plaintiff's side of the story and may issue a default judgment ordering you to vacate the property within a very short period of time. If you fail to move, the sheriff can forcibly evict you and all other occupants, and you may lose your belongings. If you miss your court date, you can file a motion explaining why and ask the judge for another opportunity to present your case.
In an eviction case in Illinois, you are generally not required to file a document called an Answer or Response unless the judge specifically orders you to do so. However, you may be required to file an Appearance form. If you fail to file any required court documents on time, the judge may decide the case without hearing from you, which is called a 'default.'
The 'Unknown Occupants' checkbox should be checked by the Plaintiff when there are people living in the property whose names are not known. This is important because the sheriff will only evict unknown occupants if this box is checked on the summons. If you are suing more than one Defendant, you must fill out a separate Eviction Summons for each Defendant, including one for all Unknown Occupants if applicable.
You must fill out a separate Eviction Summons form for each individual Defendant you are trying to evict. Additionally, if there are unknown occupants in the property, you must fill out one Eviction Summons for all Unknown Occupants with the 'Unknown Occupants' box checked. Each form must be properly served on the respective Defendant.
The Eviction Summons can be served by a sheriff, a sheriff outside Illinois, a special process server, or a licensed private detective. The summons must be served at least 3 days before the court date (7 days in Cook County). The date of service is entered by the officer or process server on the copy left with the Defendant — not by the Plaintiff.
It may be possible to attend your court date remotely by phone or video conference, depending on the specific court. The Eviction Summons includes fields for call-in numbers and video conference information if remote appearances are available. Contact the Circuit Court Clerk's office or visit the court's website to find out whether remote attendance is an option for your case.
If you cannot afford to pay court filing fees, you can file an Application for Waiver of Court Fees, which is available at illinoiscourts.gov/documents-and-forms/approved-forms. This applies to both Plaintiffs filing the case and Defendants who need to file an Appearance or jury demand. The court will review your financial situation and may waive the fees.
Yes, as a Defendant in an eviction case, you have the right to demand a trial by jury. However, jury trials are complicated, so it is advisable to consult with a lawyer before making this demand. A jury demand should be filed on or before the first court date; if you miss that deadline, the judge may not grant you additional time to file it.
Several resources are available for free or reduced-cost legal help. In Cook County, call CARPLS at (312) 738-9200, Cabrini Green Legal Aid at (312) 738-2452, Lawyers' Committee for Better Housing at (312) 347-7600, or Legal Aid Chicago at (312) 341-1070. In Northern Illinois outside Cook County, call Prairie State Legal Services at (800) 531-7057. In Central and Southern Illinois, call Land of Lincoln Legal Aid at (877) 342-7891. You can also visit illinoislegalaid.org or call Illinois Court Help at 833-411-1121.
Yes, AI-powered services like Instafill.ai can help you accurately auto-fill the Eviction Summons form fields, saving time and reducing errors. Instafill.ai guides you through each required field — such as Plaintiff and Defendant information, court date details, and service method — ensuring the form is completed correctly before submission. This is especially helpful given the number of fields and sections involved in this multi-page form.
If you have a flat, non-fillable version of the Eviction Summons PDF, services like Instafill.ai can convert it into an interactive fillable form so you can complete it digitally. This eliminates the need to print and handwrite the form, making the process faster and more legible. Once filled out, you can save and print the completed form for filing or service.
After completing the necessary documents, you are required to electronically file (e-file) them with the court by creating an account with an e-filing service provider — visit ilcourts.info/efiling for more information. If you are unable to e-file, you can request an exemption that allows you to file in person or by mail. The Circuit Clerk's office can provide guidance on the filing process and assign your case number.
Compliance E-S 3507.3
Validation Checks by Instafill.ai
1
Plaintiff Name is Required and Not Abbreviated
The Plaintiff field must contain a full legal name (or full legal entity name for associations, corporations, or agencies) and must not be left blank or contain abbreviations. This is critical because the plaintiff's identity must be clearly established in the court record to ensure proper legal standing. If the plaintiff name is missing or abbreviated, the summons may be rejected by the Circuit Clerk or deemed legally insufficient, potentially invalidating the eviction proceeding.
2
At Least One Defendant Name is Required
At least one defendant must be named in the Defendant fields (Lines 1, 2, or 3) using their full first, middle, and last name, OR the 'Unknown Occupants' checkbox must be checked. The form explicitly states that the sheriff will only evict unknown occupants if that box is checked, making this a legally consequential requirement. If no defendant is named and the Unknown Occupants box is unchecked, the summons cannot be properly served and the eviction proceeding cannot move forward.
3
County Name Must Be a Valid Illinois County
The County field must be populated with a recognized Illinois county name, as this form is specifically for Illinois Circuit Courts and the county determines jurisdiction. The county entered must correspond to the county where the eviction case is being filed, and it must be spelled correctly and in full. Leaving this field blank or entering an invalid county name would result in the form being rejected by the Circuit Clerk, as jurisdiction cannot be established.
4
Case Number Format and Presence Validation
The Case Number field must be populated with the number assigned by the Circuit Clerk and must appear consistently across all pages of the form (Pages 1 through 6 each have a Case Number entry field). The case number should follow the standard Illinois court case number format (e.g., year followed by case type code and sequence number). A missing or inconsistent case number across pages would cause administrative confusion and could result in documents being mismatched or lost in the court filing system.
5
Defendant Primary Address Completeness Check
Section 1a requires a complete primary address for the defendant, including Street Address/Unit Number, City, State, and ZIP code — all of which must be filled in. This address is used by the sheriff or process server to locate and serve the defendant, making it a legally critical field. An incomplete or missing primary address would prevent proper service of the summons, which is a due process requirement, and could result in the case being dismissed or delayed.
6
Method of Service Selection is Required and Mutually Exclusive
Exactly one method of service must be selected from the available options in Section 1c: Sheriff, Sheriff outside Illinois, Special process server, or Licensed private detective. If 'Sheriff outside Illinois' is selected, the County and State field must also be populated. Leaving no method selected or selecting multiple conflicting methods would create ambiguity about who is responsible for serving the summons, potentially resulting in the defendant not being properly served and the case being invalidated.
7
Plaintiff Role Classification is Required
In Section 2, the plaintiff must check exactly one role classification: Association, Landlord/Owner, Agent, or Receiver. This classification is important for establishing the plaintiff's legal standing and relationship to the property in question. Failure to select a role may cause the court to question the plaintiff's authority to bring the eviction action, potentially leading to dismissal or a request for clarification before the case can proceed.
8
Plaintiff Contact Information Completeness
Section 2 requires the plaintiff's full name (first, middle, last), street address with unit number, city, state, ZIP code, and telephone number to be completed. The email address is noted as optional but strongly encouraged for receiving court documents. Incomplete plaintiff contact information prevents the court and defendant from communicating with the plaintiff, which could result in missed court notices, inability to serve counter-filings, and potential dismissal of the case.
9
Court Date Must Be a Valid Future Date
The Court Date field in Section 3 must contain a valid calendar date in the correct format (MM/DD/YYYY or as required by the court), and the date must be in the future relative to the date the summons is issued. The form also requires that service be completed at least 3 days before the court date (7 days in Cook County), so the court date must allow sufficient time for service. An invalid, past, or improperly formatted court date would render the summons defective and could deprive the defendant of adequate notice.
10
Court Time and AM/PM Indicator Must Both Be Present
The Court Time field must be filled in with a specific time, and exactly one of the AM or PM checkboxes must be selected to avoid ambiguity. Without a clear time designation, the defendant cannot know when to appear, which could result in a missed court appearance and a default judgment being entered against them. An incomplete or ambiguous time entry could also be grounds for the defendant to challenge the validity of the summons.
11
Courthouse Address or Remote Appearance Information Must Be Provided
Section 3 requires either a complete in-person courthouse address (street address, city, state, ZIP) or valid remote appearance information (call-in number and/or video conference website and log-in details) to be provided. At least one of these options must be fully completed so the defendant knows how to attend the court date. If neither option is adequately filled in, the defendant has no way to appear, which constitutes a failure of due process and could invalidate the summons.
12
Service Must Occur Within Required Lead Time Before Court Date
The Date of Service recorded on Page 3 must be at least 3 days before the court date for counties outside Cook County, or at least 7 days before the court date for Cook County cases. This is a statutory requirement under Illinois law to ensure the defendant has adequate notice before being required to appear. If the date of service is too close to or after the court date, the service is legally defective and the case may need to be continued or refiled.
13
Proof of Service: Exactly One Service Method Must Be Selected
On the Proof of Service section (Pages 5–6), exactly one service method must be checked: personal service on the defendant, substituted service on a household member aged 13 or older, service on a corporation's agent, or a declaration of inability to serve. Selecting multiple service methods or leaving all options unchecked creates an invalid proof of service that the court cannot rely upon to confirm proper notice was given to the defendant.
14
Substituted Service Recipient Must Be at Least 13 Years Old
When substituted service is used (leaving documents with someone else at the defendant's home), the Approximate Age field for the person served must reflect an age of 13 or older, as explicitly required by the form instructions. Additionally, when substituted service is used, the Mailing Date field must be completed to confirm a copy was also mailed to the defendant. If the age is below 13 or the mailing date is missing, the substituted service is legally invalid under Illinois civil procedure rules.
15
Server Certification Role Must Match Method of Service Selected on Page 1
The server certification checkbox on Page 6 (Sheriff, Sheriff outside Illinois, Special process server, or Licensed private detective) must match the method of service selected in Section 1c on Page 1 of the form. If a licensed private detective is selected, the License Number field must also be completed. A mismatch between the authorized server type and the person who actually completed service would constitute a defective proof of service and could expose the process server to legal liability for perjury.
16
Email Address Format Validation for Plaintiff and Defendant
Any email address entered for the plaintiff (Section 2) or defendant (Sections 1a and 1b) must follow a valid email format, containing an '@' symbol, a domain name, and a top-level domain (e.g., [email protected]). The form specifically warns that email accounts used for court documents should be checked daily, underscoring the importance of a valid and functional address. An improperly formatted email address could result in critical court notices and documents failing to reach the intended party, potentially causing missed deadlines or default judgments.
Common Mistakes in Completing E-S 3507.3
Plaintiffs often make the mistake of listing multiple defendants on a single Eviction Summons form, not realizing that Illinois law requires a separate Eviction Summons to be completed for each individual defendant. The form explicitly states: 'If you are suing more than 1 Defendant, fill out an Eviction Summons form for each Defendant.' Failing to do so can result in improper service and may cause the case to be dismissed or delayed. Always prepare one complete Eviction Summons per defendant, plus an additional one for Unknown Occupants if applicable.
Plaintiffs frequently forget to check the 'Unknown Occupants' box when there are people living in the property whose names they do not know. The form clearly warns that the sheriff will only evict unknown occupants if this box is checked. Omitting this step means unidentified occupants cannot be legally removed, potentially leaving people in the property even after a successful eviction order. Always check this box and include a separate Eviction Summons for Unknown Occupants if anyone in the property is unidentified. Tools like Instafill.ai can help flag this checkbox requirement during form completion.
Some plaintiffs leave the case number blank or attempt to assign their own number before filing with the Circuit Clerk. The case number must be obtained from the Circuit Clerk after filing, and it must be entered on every page of the form where indicated. Leaving it blank or using an incorrect number can cause confusion and processing delays. Wait until the Circuit Clerk assigns the official case number, then enter it consistently on all pages of the form.
A very common error is entering only a partial name (e.g., just a first and last name without a middle name) or an incomplete address for the defendant in Section 1a. Inaccurate or incomplete defendant information can lead to failed service, which may delay or invalidate the eviction proceedings. Always enter the defendant's full legal name (first, middle, and last) and complete address including unit number, city, state, and ZIP code. If you have a second known address for the defendant, be sure to also complete Section 1b.
Plaintiffs sometimes skip Section 1c entirely or check the wrong method of service (e.g., selecting 'Sheriff' when the defendant is located outside Illinois, or failing to enter the county and state when 'Sheriff outside Illinois' is selected). Choosing the wrong service method can result in improper service, which may invalidate the summons. Carefully review the available options—Sheriff, Sheriff outside Illinois, Special process server, or Licensed private detective—and select the one that applies to your situation. If 'Sheriff outside Illinois' is selected, always fill in the required county and state field.
In Section 2, plaintiffs must check one of four boxes indicating their role: Association, Landlord/Owner, Agent, or Receiver. Many people skip this step because they focus only on filling in their contact details. Leaving this unchecked can create ambiguity about the plaintiff's legal standing in the case. Always select the checkbox that accurately describes your relationship to the property before entering your contact information. AI-powered tools like Instafill.ai can help ensure all required checkboxes are completed before submission.
Plaintiffs often leave the court date, time, courtroom number, or courthouse address blank in Section 3, either because they haven't yet received this information from the Circuit Clerk or because they assume it will be filled in later. However, this information is critical for the defendant to know when and where to appear. An incomplete Section 3 can render the summons defective. Always obtain the court date, time, courtroom, and courthouse address from the Circuit Clerk before completing and serving the summons, and fill in all required fields including the a.m./p.m. checkbox.
A significant mistake is when the plaintiff fills out the Proof of Service section (Pages 5–6) themselves, even though the form explicitly states 'STOP. Do not complete the form. The sheriff or special process server will fill in the form.' Only the sheriff, special process server, or licensed private detective who actually serves the documents is authorized to complete this section. A plaintiff completing this section could constitute a false statement, which is perjury under Illinois law (a Class 3 Felony). Leave Pages 5–6 entirely blank and allow the authorized server to complete them.
Plaintiffs sometimes arrange for service too close to the court date, not realizing that Illinois law requires the summons to be served at least 3 days before the court date (or 7 days in Cook County). Serving the summons too late may result in the court date being postponed or the case being dismissed due to improper service. Always confirm the service deadline with the Circuit Clerk and arrange for service well in advance to ensure compliance with the minimum notice requirements.
Both plaintiffs and defendants sometimes provide a shared email address (e.g., a family or work account) or one they rarely check when filling out contact information. The form explicitly warns that you should use an email account that you do not share with anyone else and that you check every day. Missing an email notification could mean missing a court date, important documents, or notices from other parties, potentially resulting in a default judgment against you. Always use a personal, private email address that you monitor daily for all court-related communications.
The 'Alias Summons' checkbox must be checked if this is not the first summons issued for a particular defendant, but many plaintiffs either forget to check it when it applies or check it incorrectly on a first-time summons. Failing to check this box when required can cause confusion in the court record and may affect the validity of service. Conversely, checking it on an initial summons is also an error. Review your filing history carefully: if a previous summons was issued for the same defendant in this case, always check the Alias Summons box. Instafill.ai can help track and validate this requirement automatically.
Plaintiffs frequently omit their unit number, ZIP code, or email address when completing their contact information in Section 2. Incomplete contact information can prevent the court and other parties from reaching the plaintiff with important notices or documents, potentially causing missed deadlines or court dates. Always provide your complete street address (including unit number if applicable), city, state, ZIP code, telephone number, and email address. Double-check all fields before submitting the form to ensure nothing is missing.
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