How to use AI to prepare a small claims packet for unpaid rent
AI cannot file your case or tell you what the law says in your court, but it is useful for the tedious part: turning a lease, a rent ledger and a pile of messages into a one-page timeline, a list of exhibits and a short script. You check every number against the ledger, and you confirm court rules, limits and fees with your own court.
Know the basics before you start
Small claims rules differ by state and by county. As one example, California's court self-help site says a person can generally sue for up to $12,500, or $6,250 for a business, that the filing fee is between $30 and $100, that a trial is typically set about 1 to 2 months after filing, and that a winner has to collect the money without the court's help. Your state will differ. Look up your own court's page for the limit, fees and forms before you build anything.
The same page notes that you can talk to a lawyer beforehand but cannot have one with you in court. That is a good reminder of the goal: a packet so clear that you can explain your case in a couple of minutes on your own. For the process itself, see suing a tenant in small claims.
Gather the source documents first
The assistant works from what you give it, so collect these before you open a chat:
- The signed lease and any addenda or payment plan.
- The tenant ledger from the first charge to the last, showing charges, payments and late fees.
- Notices you served, with the date and the method of delivery.
- Messages with the tenant about the money.
- Move-out and deposit paperwork if the claim includes damage.
Redact what you do not need, such as bank account numbers and unrelated personal data. See what to redact.
Ask for a timeline, then verify it
"Using only the ledger and messages below, build a dated timeline of the rent claim: lease start, each charge, each payment, each notice and each message about the debt. Put each item on its own line with its source document. Add nothing that is not in the documents. List anything that seems missing or contradictory at the end."
Then check it. Add up the unpaid charges yourself and compare with the ledger balance. A language model can slip a digit or skip a line. The same discipline is in checking an AI answer about your rent numbers.
Example a made-up tenant owes rent for three months at $1,200 and a $60 late fee each month, with one $300 payment made in the second month. Charges are 3 x $1,200 = $3,600 plus 3 x $60 = $180, so $3,780. Less the $300 payment, the balance is $3,480. The assistant's timeline must end at $3,480, or you find the line it dropped.
Turn the timeline into an exhibit list and a short script
Once the timeline is right, ask for two more things: a numbered exhibit list (Exhibit 1, the lease; Exhibit 2, the ledger; and so on) with a one-line description of each, and a two-minute script that walks the judge through the timeline in plain words. Practice it aloud. Cut anything that is opinion, such as how the tenant behaved, unless it is part of the legal claim.
- Bring paper copies of every exhibit, labeled the same way as your list.
- Keep the script to dates, amounts and what was agreed.
- Bring the original of anything the court may ask to see.
What not to ask the AI
Do not ask it how much you can claim, whether a late fee is enforceable in your state or what the judge will do. Those depend on your state's statute and your court. The assistant can sound sure and be wrong, which is why you should not trust ChatGPT alone on landlord law. Ask a lawyer or the court's self-help center for the legal part.
How DoorKeeping handles it
When your assistant is connected to DoorKeeping, it can read the tenant ledger, the message thread and the lease record directly, so the packet starts from your actual books rather than from a copy you pasted. Those reads change nothing. Rent stays in your own bank account, and anything involving money or a legal step waits for your approval. DoorKeeping prepares figures and documents from your records and does not practice law or file your claim.
Sources
- California Courts Self-Help: Small claims in California, read Oct 31, 2026
- DoorKeeping: Connect Claude or ChatGPT (steps and tools list), read Oct 31, 2026
Questions
- Can ChatGPT file my small claims case?
- No. You file with the court yourself. The assistant can help organize the documents and a short explanation.
- How much can I sue for?
- It depends on your state. California's limit is generally $12,500 for an individual, others differ. Check your own court's site.
- Should the AI write my argument about the law?
- Keep the AI to facts and dates. Ask a lawyer or the court self-help center about the law, because an AI can state a rule that does not apply in your state.
- How do I know the AI timeline is right?
- Add up the ledger yourself and match every date and amount to a source document. If one line has no source, remove it.