How to draft a lawsuit with legal AI: step-by-step guide for lawyers (2026)

Drafting a lawsuit is a sequence of interdependent decisions: choosing the right procedure, structuring the facts, grounding the brief in law, calculating amounts, and generating the final document.

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Step 1: Choose the correct procedure

Civil law (Arts. 249-250 LEC):

• Ordinary proceedings: amount > €15,000 or special matters
• Summary proceedings: amount ≤ €15,000 or possession, leases
• Enforcement: when a title already exists

Labor law: ordinary process (Arts. 76-97 LRJS) or special processes for dismissal, wage claims, fundamental rights.

Lexiel's procedure determinator applies these rules automatically from your case description.

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Step 2: Case file and data

In Lexiel, each lawsuit is generated from an active case file: auto-fill of party identifying data, amount and interest calculation with the interest calculator, deadline calendar for prescription verification.

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Step 3: Procedure template

Lexiel has 39 procedure types across civil, labor, commercial, and administrative law, each with predefined structure and auto-filled placeholders.

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Step 4: Legal grounding: where AI makes the difference

Generalist LLMs frequently cite outdated article versions or invent non-existent judgment numbers.

Lexiel retrieves the most relevant fragments from the BOE, CENDOJ and its corpus, checks each citation against those sources and flags the ones it cannot confirm, and shows the statute or judgment each legal ground comes from.

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Step 5: Review and adjustment

The Lexiel draft is a starting point. What AI cannot provide is your contribution: specific case factual narrative, litigation strategy, and judgment on which case law carries most weight with the specific court.

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Step 6: Export to Word or PDF

Standard Spanish judicial document formatting: margins, numbered facts and legal grounds, attorney signature block.

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Where time is saved

We do not publish a savings figure because we have not measured one. The phases where AI helps most are choosing the procedure, finding the applicable case law and the first draft; the review is still yours. To estimate the return, compare your current hours on those phases with the plan's cost (from €52/month, excl. VAT, billed annually).

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Conclusion

Specialized legal AI does not replace the lawyer: it takes research and first-draft work off their hands so they can spend their time on strategy and review.

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