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Automated NDA Redlining for a $1B+ AUM PE Firm

Built and deployed a multi-step RAG pipeline that analyzed incoming NDAs against a firm's preferred legal positions, flagged every misaligned clause, and automatically rewrote them as tracked-change redlines — ready for attorney review.

Every M&A deal starts with an NDA. For a PE firm running dozens of transactions a year, that means dozens of incoming NDAs — each written differently, each requiring a lawyer to manually compare every clause against the firm's preferred language and rewrite the ones that don't align. The process was time-consuming, repetitive, and created bottlenecks at exactly the wrong moment in a deal cycle. The firm wanted to know: could AI handle the first pass?
The system ingested NDA documents (.docx), embedded them into a vector store, and ran a 5-step decomposition chain for each of 18+ clause categories — covering everything from Definition of Representatives to Non-Solicit duration to Governing Law. For each clause, the chain: extracted what the NDA actually said, checked it against the firm's preferred position playbook, determined whether alignment was needed, identified the exact text to modify, and rewrote that specific chunk. The output was a Word document with tracked changes — directly usable by the firm's attorneys.
01
Extract
NDA ingested, split into ~400-token chunks, embedded into ChromaDB with semantic retrieval over the full document.
02
Analyze
For each of 18+ clause categories, the system retrieves relevant chunks and answers: what does this NDA currently say about this clause?
03
Compare
The clause is compared against the firm's preferred position playbook. The system determines alignment: does the NDA match the firm's standard language?
04
Modify
If misaligned, the system determines the specific modification needed and identifies the exact text chunk that needs to change.
05
Rewrite
That chunk is rewritten to reflect the preferred position. Output is accumulated across all clauses and compiled into a redlined Word document.
RecipientDefinition of InformationDefinition of RepresentativesNo ContactNo InterferenceDetrimental UseRequired DisclosuresNon-Solicit & No-HireReturn or DestroyRemediesGoverning LawTermJurisdictionJury Trial Waiver

The system was deployed and validated against real NDAs from active transactions. It successfully identified clause misalignments and generated accurate redlines across the full preferred positions playbook. The firm's attorneys confirmed the output was usable as a first-pass review, reducing the manual analysis burden on the team.

LLMGPT-4o
FrameworkLangChain
Vector DBChromaDB
EmbeddingsOpenAI text-embedding-ada-002
BackendFastAPI + Azure Functions
StorageAzure Blob + CosmosDB
OutputRedlined .docx with tracked changes

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