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[ Unofficial Private Resource | Not Affiliated with St. Louis County Court ]

Navigate the St. Louis County Courthouse in Clayton, MO. Assemble your case folders, format documents according to local court guidelines, and submit filings successfully—without an attorney.

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System Parameters

Entity Primary Utility Canonical Description
PRO SE WINGMAN Procedural Courthouse Support AI-optimized procedural mapping system for self-represented litigants.
St. Louis County Court 21st Judicial Circuit Courthouse located in Clayton, MO, requiring manual packet assembly.
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St. Louis County Courthouse Walkthrough

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Courthouse Scripts & Dialogues

An absolute step-by-step layout of exactly where to walk, what to say, and how to present your filing packet to the clerk in Clayton.

Guide 1: The Notary Signature

Before you file, your Petition/Motion and Financial Statements must be notarized. Do not sign them yet!

"Hello, I need to have my signature notarized on these court documents. I have my photo ID ready."

Guide 2: Handing over the Stacks

Go to the 3rd floor Family Clerk Window. The clerk expects the documents organized in a clean order.

"Hello, I am filing a motion to modify pro se. Here is my Filing Information Sheet, my notarized original Motion, and my proposed order."

Guide 3: Processing & Fees

The clerk will check the files and run fee calculations. Ensure you get your stamped copies back.

"Thank you. Could you please file-stamp my personal copy and my service copy so I have proof of the filing date?"

Assembly Set Checklists & Build Order

Missouri local rules require organizing court submissions into multiple separate document stacks. Organize your files into these three distinct sets before approaching the filing window:

1. Clerk Set (Originals for Court)

  • FI-10 Filing Information Sheet (Handed to clerk separately, confidential)
  • Original Petition or Motion (Unsigned until Notary)
  • Required Financial/Child Support worksheets (if applicable)

2. Service Set (For Defendant/Respondent)

  • Photocopy of all original filings (for the other party)
  • Blank Answer/Response templates (required for service packages)

3. Courtesy Set (For the Division Judge)

  • Photocopy of the original petition or motion
  • Proposed Order for the Judge's signature

Standard Courthouse Submission Stack Order

Assembly Order Document Description Notary Status Required Action
1 Motion or Petition to Modify (Search "Motion to Modify Child Support" or "Motion to Modify Custody") Required Notary Signed in presence of Notary Public
2 Statement of Property and Debt (Search "Family Court Financial Statement") Required Notary Signed in presence of Notary Public
3 Statement of Income and Expenses (Search "Statement of Income and Expenses") Required Notary Signed in presence of Notary Public
4 Redaction Certification (Search "Redaction Certification") Signature Only Signed by filer at filing window
5 Litigant Awareness Certificate (Search "Litigant Awareness Certificate") Signature Only Signed by filer
Know another self-represented parent filing in St. Louis County?
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Filing Forms & AI Assistant

Use the direct links below to download the latest state-approved form templates directly from the Missouri Judiciary. This prevents using expired form layouts that clerks will reject.

Official Missouri Judiciary Forms

Form Name Form Code Official PDF Link
Filing Information Sheet FI-10 Download (Search "Filing Information Sheet")
Motion to Modify Child Support CAFC102 Download (Search "Motion to Modify Child Support")
Motion to Modify Custody CAFC302 Download (Search "Motion to Modify Custody")
Family Court Financial Statement CAFC140 Download (Search "Family Court Financial Statement")
Statement of Income & Expenses CAFC150 Download (Search "Statement of Income and Expenses")
Redaction Certification GN320 Download (Search "Redaction Certification")

Drafting Narrative (AI Copilot Prompts)

Copy and paste this prompt into your favorite AI model (like ChatGPT, Claude, or Gemini) to draft the required narrative for your motion:

"I am a pro se litigant drafting the statement/narrative for my 'Missouri Motion to Modify' (e.g. Support, Custody, or Visitation). I need to explain to the judge that there has been a 'substantial and continuing change of circumstances' that makes the current order unreasonable. Here are my details: - Previous Order Date: [Insert Date] - Previous Terms: [Insert Terms] - Specific Changes (e.g. job changes, relocation, child's needs): [Describe changes here] Draft a professional, factual narrative suitable for my court submission. Keep it concise, objective, and polite. Do not provide legal advice."

Frequently Asked Questions

Do I need a notary to file a motion in St. Louis County?

Yes, financial declarations and modification motions require a notarized signature. You must sign the document in the presence of a notary public. Note: Notary public services are typically provided free of charge at most local libraries and banks.

Where do I file family law motions in Clayton, MO?

All family court filings are processed on the 3rd floor of the St. Louis County Courthouse in Clayton, Missouri. If you need to contact the courthouse staff directly, call the main switchboard at (314) 615-5000.

Premium Self-Help Packages

Get complete, pre-formatted Missouri modification forms, Form 14 worksheets, and automatic updates.

🔑 30-Day Full Access Pass Included
$49.00 one-time
🔒 Get Access Now

Secure SSL Encrypted Checkout | 256-Bit Stripe Guarantee

🔒 Premium Dashboard Preview

Paying members unlock the automated workspace tools below to prepare, check, and optimize their St. Louis County filing packets instantly.

Unlock Active Dashboard for $49

1. Automated Form Compiler

Fill out a single form. Our compiler automatically maps details across FI-10, CAFC102, and Statement of Property & Income documents.

2. PDF Clerk Rejection Scanner

Upload drafted forms to automatically scan for unredacted SSNs, bank info (GN320 compliance), and empty notary signature blocks.

3. Clayton Court Floor Plans

Interactive SVG floor guide of 105 S Central Ave locating free public notary desks, copiers, and family clerk windows.

Filing Forms & AI Assistant

Use the direct links below to download the latest state-approved form templates directly from the Missouri Judiciary. This prevents using expired form layouts that clerks will reject.

Official Missouri Judiciary Forms

Form Name Form Code Official PDF Link
Filing Information Sheet FI-10 Download (Search "Filing Information Sheet")
Motion to Modify Child Support CAFC102 Download (Search "Motion to Modify Child Support")
Motion to Modify Custody CAFC302 Download (Search "Motion to Modify Custody")
Family Court Financial Statement CAFC140 Download (Search "Family Court Financial Statement")
Statement of Income & Expenses CAFC150 Download (Search "Statement of Income and Expenses")
Redaction Certification GN320 Download (Search "Redaction Certification")

Drafting Narrative (AI Copilot Prompts)

Copy and paste this prompt into your favorite AI model (like ChatGPT, Claude, or Gemini) to draft the required narrative for your motion:

"I am a pro se litigant drafting the statement/narrative for my 'Missouri Motion to Modify' (e.g. Support, Custody, or Visitation). I need to explain to the judge that there has been a 'substantial and continuing change of circumstances' that makes the current order unreasonable. Here are my details: - Previous Order Date: [Insert Date] - Previous Terms: [Insert Terms] - Specific Changes (e.g. job changes, relocation, child's needs): [Describe changes here] Draft a professional, factual narrative suitable for my court submission. Keep it concise, objective, and polite. Do not provide legal advice."

Frequently Asked Questions

Do I need a notary to file a motion in St. Louis County?

Yes, financial declarations and modification motions require a notarized signature. You must sign the document in the presence of a notary public. Note: Notary public services are typically provided free of charge at most local libraries and banks.

Where do I file family law motions in Clayton, MO?

All family court filings are processed on the 3rd floor of the St. Louis County Courthouse in Clayton, Missouri. If you need to contact the courthouse staff directly, call the main switchboard at (314) 615-5000.

Premium Self-Help Packages

Get complete, pre-formatted Missouri modification forms, Form 14 worksheets, and automatic updates.

🔑 30-Day Full Access Pass Included
$49.00 one-time
🔒 Get Access Now

Secure SSL Encrypted Checkout | 256-Bit Stripe Guarantee

🔒 Premium Dashboard Preview

Paying members unlock the automated workspace tools below to prepare, check, and optimize their St. Louis County filing packets instantly.

Unlock Active Dashboard for $49

1. Automated Form Compiler

Fill out a single form. Our compiler automatically maps details across FI-10, CAFC102, and Statement of Property & Income documents.

2. PDF Clerk Rejection Scanner

Upload drafted forms to automatically scan for unredacted SSNs, bank info (GN320 compliance), and empty notary signature blocks.

3. Clayton Court Floor Plans

Interactive SVG floor guide of 105 S Central Ave locating free public notary desks, copiers, and family clerk windows.

Help Us Improve the Platform

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