AI for lawyers

Lawyers don't use AI for ready-made answers: they use it to check faster and draft with structure. What changes in legal work isn't the method — it's what must never enter the chat: client privilege, personal data, and the final decision, which stays yours.

Contract review in minutes

Paste the contract into ChatGPT and ask: "Identify abusive or ambiguous clauses in this contract. For each one, suggest a more balanced alternative wording."

AI doesn't replace a lawyer's judgment. But it scans text far faster than a human and flags where the risk sits: one-sided obligations, deadlines nobody noticed, a clause that says two things at once.

The real professional work starts after that — confirming that what it flagged is actually in the contract and what case practice says about it.

Guided case law research

"List recent rulings on [topic]. Organize by: favorable holdings, unfavorable holdings, and minority opinions."

Caution: use the anchor method. Ask the AI to cite case numbers and verify each one in the official database. The list it produces is the starting point of the research, not the research itself.

Drafting briefs with structure

Use the Perfect Prompt Formula, adapted:

What makes this prompt work are the brackets: doctrine and case law go in by you, not by the model. Leave them out and you get well-written text with nothing behind it.

Confidentiality before the prompt

What a client tells their lawyer doesn't go to an outside tool without a lawful basis. Before pasting a contract, pleading, email, or document with party names, ask whether that data can be processed outside the firm.

If the answer is no — or unclear — anonymize. In practice: "Party A", "Party B", and only the fragment the analysis needs. A long contract becomes the paragraphs that answer the question, and no personal data travels.

The general rule lives in Brazil's Lei Geral de Proteção de Dados. The everyday filter is simpler: if you wouldn't email it outside the firm, don't paste it.

The extra caution for Law

Unlike other professions, a factual error from ChatGPT in the legal field has serious consequences. Three golden rules:

1. Always anchor in real documents (contract, statute, case law)
2. Always verify case numbers and legal citations
3. Never outsource the final decision — AI suggests, you decide

Risk analysis, likelihood of success, even screening resumes at the firm can use AI as a draft. A decision that affects the client or a person goes through someone who answers for it.

Frequently asked questions

Is it safe to paste a whole contract into ChatGPT?

It depends on what's in it. Names, bank details, or confidentiality clauses mean you anonymize or don't paste at all. A public or internal contract with no personal data is a different case — and even then, paste only the relevant sections.

How do I stop AI from citing a statute or ruling that doesn't exist?

Ask for the source of every citation and check it in the official text: statute number, case number, court. Anything without a reliable source is a draft — redo that part of the research by hand.

Can AI replace a lawyer's research?

No. It speeds up the first pass: organizing holdings, spotting splits, suggesting structure. Doctrinal qualification and reading the case remain human work.

What should a firm decide before rolling this out?

A short policy: what may be pasted, what requires anonymizing, and who signs off on the final call. It's worth checking guidance from the Brazilian Bar Association before standardizing use — and the same data logic applies across the whole firm, as in AI for managers.

For the method behind all of this, see the Before/After Method.