Court & Hearings
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What is a lawsuit?
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A lawsuit is a legal process where one person or business asks a court to resolve a dispute. The person who starts the lawsuit is called the plaintiff or petitioner. The person or business being sued is called the defendant or respondent.
In a civil lawsuit, the court does not punish anyone or decide criminal guilt. Instead, the court decides whether the plaintiff or petitioner has proven a legal claim and what, if anything, the defendant or respondent must do to fix the problem. Most civil lawsuits ask the court to order someone to pay money or decide a legal right or responsibility.
A lawsuit usually happens in stages. It often starts with filing paperwork and notifying the other side. The court may then set deadlines, hold court dates, and allow both sides to share information and evidence. Some cases are dismissed, some settle before trial, and others go to a hearing or trial where each side presents their case.
A lawsuit follows formal rules and deadlines. The judge, or sometimes a jury, makes the final decision based on the law and the evidence.
How do I decide whether to file a lawsuit?
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In most cases, you can start a lawsuit by filing paperwork and paying a filing fee. The court does not decide whether your case will win before it is filed. However, your paperwork must include enough facts to show that you have a valid legal claim and clearly explain what you are asking the court to do.
Not every problem is something a court can fix. If your case does not fit the law, it may be dismissed, or you may lose after a hearing or trial. This can cost you time and money.
In general, a lawsuit may make sense if:
- The other person or business had a legal duty to you
- That duty was broken
- You suffered a real loss, such as losing money or property
- The court has the authority to hear your case
- You file before the legal deadline, called the statute of limitations
It can also help to think about practical issues, such as:
- How strong your legal claim is
- How much money or property is at stake
- Whether the other side can pay if you win
- The costs involved, including filing fees and other expenses
If possible, talk to a lawyer before you file. Even a short conversation may help you understand:
- Whether the law supports your claim
- How long you have to file a case
- What risks or challenges you might face
- Whether there are other options besides a lawsuit
There are other options besides going to court that may cost less and be faster:
- Settlement: You and the other side come to an agreement without asking a judge or jury to decide.
- Mediation: A trained neutral third party helps you try to reach an agreement. The mediator does not decide the case. Any agreement is put in writing and must be followed.
If you represent yourself, you must follow the same rules and deadlines as a lawyer. Judges and court staff cannot give legal advice. You may need to spend time learning the process and preparing your case. Learn about doing your own legal research.
Thinking through these issues ahead of time can help you decide whether starting a lawsuit makes sense for your situation.
How long do I have to sue someone?
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Illinois law sets time limits for filing lawsuits. These deadlines are called statutes of limitations. The deadline depends on the type of legal claim you are bringing.
For example, different time limits apply to contract disputes, property damage or personal injury cases.
You usually must file your lawsuit before the deadline runs out. If you miss the deadline, the court will likely dismiss your case, even if you would otherwise win. For more information, see Common statutes of limitation.
How much does it cost to start a lawsuit?
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When you start a lawsuit, you usually have to pay court costs, including:
- A filing fee to open your case
- Service fees to have the other side formally notified of the lawsuit
The amount depends on the court and county where you file. Other costs may come up after your case starts, such as:
- Fees to file certain motions
- Costs for copies or certified court documents
- Expenses related to evidence or witnesses
If you cannot afford court costs, you can ask the court for a fee waiver. If approved, some or all court fees may be waived.
How do I start a lawsuit?
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You start a lawsuit by filing a Summons and Complaint or Petition with the court. For step-by-step instructions, see Filing a lawsuit complaint.
What forms do I need to start a civil lawsuit?
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To start a civil lawsuit in Illinois, you will usually need these forms:
- Complaint or Petition: This form is used to start a lawsuit. It explains the facts and legal grounds for your lawsuit, as well as what you are asking the court to do.
- Summons: The form that tells the defendant or respondent that you filed a lawsuit and explains how and where they must respond.
- Proof of delivery: A form that shows the Summons and Complaint or Petition were properly delivered to the defendant or respondent.
- The summons packet linked above includes a proof of delivery form that must be completed after service. Some sheriffs or process servers may use their own version of this form, sometimes called a certificate of service or a sworn affidavit.
- Jury Request: Use this form if you want a jury trial. In a jury trial, the judge oversees the case, and the jury decides the facts. Learn about the difference between jury and bench trials.
- Fee Waiver Application: When you file your case, you must pay a filing fee. If you cannot afford the fee, you can file this form to ask the court to waive or reduce the filing fee.
- Civil Cover Sheet : A short administrative form that provides basic information about your case, like the names of the parties and the type of case. Some counties require this form when you file your lawsuit. There is no statewide Civil Cover Sheet form, but some counties have their own form online. Contact the circuit court clerk to find out if one is required.
What should I include in my complaint or petition?
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Your Complaint or Petition must clearly explain your case and what you are asking the court to do. In general, it should include:
- The facts: Explain why you are suing. Describe what happened, when it happened, and who was involved. Write your facts in short, numbered paragraphs. Each paragraph should focus on one separate fact or issue. It helps to list them in the order they happened. These paragraphs are sometimes called allegations.
- Your legal claim: Explain the legal reasons for your lawsuit and the law that supports your case. For example, if you are suing for breach of contract, explain what was agreed to, how the other person did not follow the agreement, and why the law says you should win.
- What you are asking for: Tell the court what you want. This might include money damages, return of property, or an order requiring someone to do or stop doing something. If you are asking for money, include the amount.
- Documents (in some cases): If your claim is based on a written document, such as a contract, Illinois law generally requires you to attach a copy of that document to your Complaint or explain why you cannot attach it. Do not attach other evidence. You will present your evidence later in the case.
Be specific and include names, dates, places, laws, or rules that support your case, and any other important details. You usually need the judge’s permission to update or change your Complaint or Petition after you file it.
What is the difference between a 30-day summons and a date certain summons?
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A 30-day summons tells the defendant or respondent to file a response within 30 days after they are served with the lawsuit. A date certain summons tells the defendant or respondent to attend court on a specific date. On the Summons form, you must check which type you are using.
- Use a date certain summons if you are asking for $50,000 or less, asking to recover personal property you believe the defendant has, or if your case must go to mandatory arbitration.
- Use a 30-day summons for most other types of cases.
If you are using a date certain summons, you will need to get a court date from the circuit court clerk. In some counties, you will be given a court date when you e-file the Summons. List the court date in the Summons.
Where do I file my lawsuit?
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For information on how to decide where to file your lawsuit, see Step 2 of the Filing a lawsuit instructions.
The proper county where a case should be filed is called venue. In general, you should file your case in the county where:
- The person you are suing lives or does business, or
- The event that led to your case happened.
Filing in the wrong county may delay your case or result in the case being dismissed or transferred to another court. If you are unsure which county is correct, talk to a lawyer before filing.
What are small claims cases?
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Small claims cases are lawsuits where the amount of money requested is $10,000 or less. They are handled in the small claims division of the circuit court. Small claims cases are designed to be simpler and more accessible for people without lawyers. The process is usually faster and less formal than other civil cases, and the forms are generally easier to complete.
You may want to use small claims if:
- You are asking for $10,000 or less,
- Your case is straightforward, and
- You want a simpler court process.
Small claims may not be a good option if:
- You want to sue for more than $10,000, or
- You want the judge to order someone to do something, stop doing something, or return specific property to you.
For information about bringing or responding to a small claims case, see Suing someone for $10,000 or less.
How do I notify (“serve”) someone that I am suing them?
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You must officially notify the other side by having them “served” with a Summons and a copy of your Complaint or Petition . This usually means arranging for the papers to be delivered by the sheriff or a certified process server. You cannot serve the papers yourself.
For step-by-step instructions, see Serving a Summons.
How do I notify (“serve”) someone who lives outside of Illinois?
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Serving a defendant who lives outside of Illinois can be more complicated than serving someone who lives here. In many cases, you must follow Illinois service rules as well as the rules of the state where the defendant lives. You may need to arrange service through a sheriff or process server in that state. Because the rules can vary depending on the situation, you may want to speak with a lawyer before trying to serve someone outside of Illinois.
What if I cannot find the defendant or respondent?
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In some limited situations, a judge may allow you to serve a Summons in non-traditional ways. These methods are uncommon and are usually a last resort. You must make a reasonable effort to find the defendant before the judge will allow another way of serving them. If you cannot find the defendant after making reasonable efforts, you may ask the court for permission to serve them another way. For more information about your options, see our instructions on how to serve a Summons.
What should I do if the other side does not respond to the summons?
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A Summons usually gives the defendant (or respondent) 30 days to file an Appearance . If they do not respond, first confirm that they were properly served. You can check with the sheriff or process server to see if the Summons was delivered.
If the defendant was not served, you must get and serve an Alias Summons. An Alias Summons is a second summons and is served the same way as the original. You cannot move forward with your case until the defendant is properly served.
If the defendant was properly served but still does not respond by the deadline, you may be able to ask the court for a default judgment.
How do I know if I have been sued?
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You are usually notified that you have been sued when you are formally “served” with a Summons and a copy of the Complaint or Petition . This is often done by the sheriff or a certified process server who delivers the papers to you in person. In some cases, the judge may allow you to be served by mail or by a notice published in a newspaper. Learn about how a Summons is served.
The Summons will list the case number, the court location, and the deadline to respond. It will tell you what you need to do. You may have to go to court, which could be in person, by phone, or by video. Or you may need to file paperwork with the court, such as an Appearance or an Answer .
It is important to respond by the deadline and attend any scheduled court date. If you do not respond, the judge may enter a default judgment against you. This means the other side can win the case without hearing your side.
Sometimes people do not realize they were sued until after a default judgment is entered. They may find out when their wages are garnished or their bank account is frozen. If that happens, you may be able to ask the court to cancel (“vacate”) the default judgment. You may want to speak with a lawyer about your options.
Can I ignore a summons?
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You should not ignore a Summons . If you do, you will likely lose the case by default.
A Summons is an official notice that you have been sued. It tells you what you must do next. In some cases, the court will schedule a court date, which may be in person, by phone, or by video. In other cases, you may need to file paperwork with the court, like an Appearance or an Answer. Your Summons will explain what you must do and when you must do it. If possible, talk to a lawyer as soon as you receive it.
While you are not required to respond to a Summons or participate in a lawsuit, ignoring it can have serious consequences. If you ignore a Summons, the judge may enter a default judgment against you. This means the other side can win the case without hearing your side, and the court may order you to pay money or do or stop doing something. You will still have to follow the court’s decision even if you did not participate in the lawsuit. In some cases, you may be able to ask the court to cancel (“vacate”) the default judgment. You may want to speak with a lawyer about your options.
Important: There is one kind of summons that you cannot ignore. You cannot ignore a Citation to Discover Assets . You may get this after someone wins a money judgment against you. It requires you to go to court and answer questions about your income and property. If you get a Citation to Discover Assets, you should talk to a lawyer right away. If you do not go to court or refuse to follow the judge’s order to share information, the judge may hold you in contempt of court. This can lead to fines or even a warrant for your arrest. The warrant would not be for failing to pay a debt. It would be for not following the judge’s order.
Is there a difference between a summons and a subpoena?
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Yes. A summons and a subpoena both notify someone about a court proceeding, but they are used for different purposes.
A summons is an official notice of a lawsuit. It is given to the person being sued to let them know a case has been filed against them and that they must respond or appear in court. The summons must be formally delivered, or “served,” according to specific rules. For step-by-step instructions on serving a summons, see how to serve a summons.
A subpoena is a court order that requires a person to testify in court, answer questions at a deposition, or provide documents or other evidence. It must be personally served by the sheriff, a process server, or another adult who is not a party to the case. You can typically get a subpoena form from the clerk of the court, and in many counties, it may be available on the clerk’s website. If the subpoena requires someone to appear, you generally must pay witness and mileage fees at the time of service. Read more about subpoenas.
Do I need a lawyer to sue someone?
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No. You are allowed to sue someone in Illinois without a lawyer.
Many people represent themselves in civil cases, especially in small claims court. However, representing yourself can be difficult. You are expected to follow the same court rules and deadlines as a lawyer, including rules about filing papers, evidence, and court appearances.
A lawyer is not required, but legal help can be useful if:
- Your case is complicated
- You are suing for a large amount of money
- The other side has a lawyer
- You are unsure which court or legal claim applies
Judges and court staff must remain neutral and generally cannot give legal advice. If you are not sure whether you need a lawyer, even a short conversation with one may help you understand your options before you file.
Worried about doing this on your own? You may be able to get free legal help.