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Form DISC-003/UD-106, Form Interrogatories—Unlawful Detainer, page 1

Basic · 44/100Form Complexity Index

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What this form asks for

The AI fills all of it, from your answers or your documents.

Form DISC-003/UD-106 is a standard set of written questions (interrogatories) approved by the Judicial Council of California for use in unlawful detainer (eviction) cases. It allows either the landlord or the tenant to formally request information and documents from the other party as part of the legal discovery process, helping to build their case. 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.

Fillable fields85

Pages7

Form Complexity IndexBasic, 44/100

The AI checks your answers before you download

14 checks built for this form, so a wrong date or a missing answer is caught before anyone else sees it.

Conditional Requirement for Unlawful Detainer Assistant Information

This check verifies that if the 'did' checkbox is selected for the Unlawful Detainer Assistant, all corresponding fields (Assistant's Name, Address, Tel. No., County of Registration, Registration No., Expires Date) are completed. This is crucial for compliance and transparency, ensuring that any compensated assistance is properly documented as required by law. Failure to provide this information when required could render the form submission invalid or lead to legal challenges.

Assistant Registration Expiration Date Validity

Validates that the 'EXPIRES (DATE)' for the Unlawful Detainer Assistant is a valid, future date. This ensures the assistant's registration was active at the time the form was prepared. Submitting a form prepared by an assistant with an expired registration could invalidate the assistance provided and have legal consequences.

Attorney State Bar Number Format

Ensures the 'STATE BAR NUMBER' field contains a valid, numeric California State Bar number, which is typically up to 6 digits. This check is critical for verifying the attorney's credentials and their standing with the State Bar of California. An invalid or missing number prevents proper identification of the legal counsel of record.

Case Identification Completeness

This validation confirms that the 'CASE NUMBER', 'Asking Party', and 'Answering Party' fields are all filled out. These fields are essential for associating the document with the correct legal case and parties involved. An error or omission here could result in the document being misfiled or rejected by the court clerk.

Set Number Must Be a Positive Integer

Verifies that the 'Set No.' field contains a positive integer (e.g., 1, 2, 3). In legal discovery, parties may serve multiple sets of interrogatories, and this number is used to uniquely identify each set. A non-numeric or missing value would create ambiguity and could disrupt the discovery process.

Standardized Telephone Number Format

This check ensures that all telephone number fields (e.g., 'TEL. NO:', 'TelNoAsst', and any phone numbers in the answers) adhere to a standard 10-digit format. Consistent formatting is important for data integrity and ensures that contact information is usable without manual correction. Invalid formats can lead to communication failures between parties.

And 8 more checks

ZIP Code Format Validation
Ownership Percentage Range
Chronological Date Verification for Property Acquisition
Occupant Age Verification Logic
Conditional Question Logic for Defective Service
Superior Court County Validation
Currency Field Format Validation
Uniform Date Formatting

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How to Fill Out DISC-003/UD-106 Online for Free in 2026

What the AI walks you through.

Navigate to Instafill.ai and upload or select the Form DISC-003/UD-106.
Enter the case details, including court information, party names, and case number, into the designated fields.
As the 'Asking Party', review the list of interrogatories and check the box next to each question you want the 'Answering Party' to answer.
Use the AI assistant for guidance on which questions are most relevant to your specific unlawful detainer claims or defenses.
If you are the 'Answering Party', provide complete and straightforward answers to each checked interrogatory in the spaces provided.
Review the entire form for accuracy and completeness, then securely download, print, or share the document for legal service.

Common Mistakes in Completing DISC-003/UD-106

The ones the AI is built to catch.

Incomplete Party and Case Information

Users often forget to fill in crucial identifying information at the top of the form, such as the 'Case Number', 'Asking Party', 'Answering Party', and 'Set No.'. This happens due to oversight when rushing to complete the substantive questions. Missing this information can lead to the document being rejected by the court clerk, misfiled, or considered invalid, causing significant delays in the legal discovery process. To avoid this, double-check that every field in the header is completed accurately before proceeding to the questions. AI-powered tools like Instafill.ai can help by flagging mandatory fields and ensuring they are filled before finalization.

Forgetting to Check Interrogatory Boxes

The asking party is required to check the box next to each specific interrogatory they want the answering party to answer. A very common mistake is to draft the document but forget to check these boxes. If the boxes are not checked, the answering party has no legal obligation to respond to those questions, rendering the entire effort useless. To prevent this, the asking party must carefully review the form and mark every relevant question; using a digital tool can help ensure selections are saved correctly.

Omitting the Verification Signature and Date

As per Instruction 3(g), the answering party's responses must be signed and dated under penalty of perjury. Forgetting this verification step is a critical error that invalidates the entire set of answers. This often occurs because the signature line is at the very end of a long document. An unverified response can be stricken by the court, and the party may face sanctions, including having facts deemed admitted against them. Always remember to print, sign, and date the final page of your responses.

Failing to Identify Document Custodians

Many questions, such as 71.2(c) and 71.8(d), require the party to not only identify a supporting 'DOCUMENT' but also state the name, ADDRESS, and telephone number of the 'PERSON' who has it. Parties frequently mention a document (e.g., 'the lease') but fail to provide the custodian's contact details. This incomplete response prevents the asking party from easily requesting the document in a subsequent production request. To avoid this, always provide the full contact information for whoever possesses the original or a copy of the document.

Confusing 'Rental Unit' with 'Property'

Section 4 of the form explicitly defines 'RENTAL UNIT' (the specific premises being recovered) and 'PROPERTY' (the entire building or parcel). A frequent mistake is using these terms interchangeably when answering questions like 70.6 ('Are there other rental units on the PROPERTY?'). This confusion leads to inaccurate or ambiguous answers that can weaken a party's position. Carefully read the definitions and apply them precisely throughout your responses to ensure clarity and accuracy.

Providing Incomplete or Vague Narrative Answers

Interrogatories with multiple sub-parts, like 70.8 regarding security deposits or 75.3 regarding repair notices, are often answered incompletely. A party might answer the main question but neglect to provide all the specific details requested in sub-parts (a), (b), (c), etc. This forces the asking party to file a motion to compel further responses, wasting time and money. To avoid this, address each sub-part of a question separately and completely, ensuring every piece of requested information is provided.

Incorrectly Filling the Attorney/Party Information

Parties representing themselves ('pro se' or 'pro per') often get confused by the attorney information block. They might leave their own contact information blank or incorrectly try to fill in fields like 'State Bar Number' or 'Firm Name'. This can cause confusion for the court and opposing party regarding who to serve documents on. A self-represented party should enter their own name, address, and phone number and leave the State Bar Number field blank. Using a smart form-filling tool like Instafill.ai can guide users to fill the correct fields based on whether they are an attorney or a self-represented party.

Neglecting to Detail Oral Agreements

When asked about agreements not in writing (e.g., in question 70.11(b) or 78.1), parties often provide a vague summary like 'we agreed on repairs' instead of the required specifics. The form requires stating each part of the oral agreement, the date it was made, and the name, address, and phone number of each person who agreed to it. Failing to provide this detail makes the claim about the oral agreement difficult to substantiate and may render the answer non-responsive. Be as specific as possible about who said what, to whom, and when.

Improperly Referencing Attached Documents

Instruction 3(e) allows a party to answer an interrogatory by referencing a document, but it requires specificity. A common error is to attach a lengthy document, like a 30-page lease, and simply state 'See attached lease' without directing the asking party to the specific page and section where the answer is located. This is an improper response. To avoid this, your answer must clearly state, for example, 'See attached Rental Agreement, page 3, section 5.1'.

Ignoring the Definition of 'Address'

The form defines 'ADDRESS' in Section 4(h) as the full street address, including city, state, and zip code. Throughout the form, parties are asked for addresses of various persons. A frequent data entry error is providing only a street name and number, omitting the city, state, and zip code. This makes the information incomplete and potentially useless for serving notices or contacting individuals. Advanced form-filling tools like Instafill.ai can help prevent this by validating address formats and ensuring all components are included.

Frequently Asked Questions About DISC-003/UD-106

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How does the AI fill out DISC-003/UD-106?

You answer a few questions in plain words, or upload a document you already have. The AI reads what you give it and puts each answer into the right field of DISC-003/UD-106, on every page, in seconds. It checks the answers against the form's own rules, and you review and change anything before you download, print or sign.

What happens to my information?

It is encrypted in transit and at rest, and it is never used to train AI.

How complex is DISC-003/UD-106 to fill out?

DISC-003/UD-106 has a Form Complexity Index of 44 out of 100, in the basic tier: 85 fillable fields across 7 pages. Instafill.ai's AI fills it in under a minute, with every field there for you to review before you download.

What is the purpose of the Form Interrogatories—Unlawful Detainer (DISC-003/UD-106)?

This form is a set of standard questions used in an eviction lawsuit (unlawful detainer) in California. It allows one party (e.g., the landlord) to ask the other party (e.g., the tenant) to provide information and evidence relevant to the case under oath.

Who needs to fill out this form?

The 'Asking Party' (either the landlord or tenant) selects which questions they want answered by checking the corresponding boxes. The 'Answering Party' is the person who receives the form and must provide written answers to the checked questions.

Do I have to answer every single question on the form?

No, you only need to answer the questions that have been checked by the Asking Party. You must provide a complete answer or a valid legal objection for each checked item.

How long do I have to respond to these interrogatories?

Generally, you must serve your written responses on the asking party within five days of receiving the form. It is crucial to comply with this deadline to avoid penalties.

What happens if I don't answer the questions?

Failure to respond properly can result in court-ordered sanctions. These may include fines, being ordered to pay the other party's attorney fees, or even losing your case entirely.

What should I do if I don't know the answer to a question?

If you lack personal knowledge, you must state so in your answer but also make a reasonable and good-faith effort to find the information. This may involve asking other people or checking records available to you.

Can I just attach a document instead of writing a long answer?

Yes, if a question can be answered by referring to a document like a lease, you can attach it as an exhibit. Be sure to reference the specific page and section where the answer can be found in your response.

What does it mean that my answers must be 'verified'?

Verifying your answers means you must sign and date a statement at the end of your responses, declaring under penalty of perjury that your answers are true and correct. The form provides the required legal language for this declaration.

What is the difference between the 'RENTAL UNIT' and the 'PROPERTY'?

The 'RENTAL UNIT' is the specific premises the plaintiff seeks to recover, such as an apartment. The 'PROPERTY' refers to the entire building or parcel of which the rental unit is a part, including any common areas.

What kind of information is requested in the 'Breach of Warranty to Provide Habitable Premises' section (75.0)?

This section is used when a tenant claims the landlord failed to keep the rental unit in a livable condition. The questions ask for details about code violations, needed repairs, inspections, and any communication with the landlord about these issues.

Can I use AI to help me fill out this form?

Yes, services like Instafill.ai use AI to auto-fill form fields accurately and save time. This can be particularly helpful for entering case information, names, and addresses consistently throughout the document.

How can I fill out the Form Interrogatories online?

You can use a service like Instafill.ai to easily complete this form online. Simply upload the PDF, and the platform will make it an interactive form where you can type your information directly into the fields.

The PDF of this form I have is not fillable. What can I do?

If you have a non-fillable or 'flat' PDF, you can use a tool like Instafill.ai. It can convert the static document into an interactive, fillable form that you can easily complete on your computer, save, and print.

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unlawful detainer forms: Judicial Council of California Form UD-150, Request/Counter-Request to Set Case for Trial—Unlawful Detainer, Form UD-100, Complaint—Unlawful Detainer, Judicial Council of California Form UD-105, Answer—Unlawful Detainer, Judicial Council of California Form UD-105, Answer—Unlawful Detainer, Judicial Council of California Form UD-150, Request/Counter-Request to Set Case for Trial—Unlawful Detainer, Judicial Council of California Form UD-100, Complaint—Unlawful Detainer, Form UD-105, Answer—Unlawful Detainer, Form UD-101, Plaintiff's Mandatory Cover Sheet and Supplemental Allegations—Unlawful Detainer, Form SUM-130, Summons - Unlawful Detainer - Eviction, Form UD-110, Judgment—Unlawful Detainer, Judicial Council of California, Form UD-110P, Judgment—Unlawful Detainer Partial Eviction Attachment, Form UD-115, Stipulation for Entry of Judgment (Unlawful Detainer), Form UD-116, Declaration for Default Judgment by Court (Unlawful Detainer—Civ. Proc., § 585(d)), Form UD-120, Verification by Landlord Regarding Rental Assistance—Unlawful Detainer, UD-155, Eviction Case (Unlawful Detainer) Stipulation, Judicial Council of California Form UD-110H, Judgment—Unlawful Detainer Habitable Premises Attachment

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