LLM Legal Document Processing Assistant and Semantic Search with Qdrant Vector Store

This workflow automates building and querying a multi-jurisdictional legal RAG knowledge base, replacing manual doc parsing, indexing, and research that take 3-5 hours per update for lawyers. The Document Upload Trigger/Webhook receives PDFs/Word/Text/URLs, the Input Validator If checks, the Document Source Handler Switch routes, downloaders/processors (HTTP Request/ExtractFromFile) handle formats, the Legal Content Parser Set structures sections, the Section Splitter/Content Validator/Batch Processor prepare, the Content Enhancer adds metadata, the Embeddings Generator Mistral creates vectors, the Document Loader/Text Splitter LangChain chunk, and Vector Store Qdrant upserts. The Legal Chat Interface ChatTrigger/Manual Setup enables queries, the Universal Legal Agent with tools (Targeted Legal Searcher/Embedding Generator/Citation Searcher) retrieves via Qdrant, and formatters deliver cited responses. Errors route to handlers. It helps legal teams in mid-sized firms (20-50 staff) managing 50+ docs weekly, enabling instant cross-jurisdiction research without LexisNexis, accelerating case prep with accurate, cited insights.\n\nThis workflow saves 10-15 hours weekly on 50 documents, improving retrieval by 85%. Use cases include statute searches for attorneys, compliance checks for compliance officers in enterprises. Suitable for mid-sized teams. Requires Mistral Cloud ($0.25/1M tokens), Qdrant ($0.10/GB/month), OpenAI ($0.03/1k tokens); n8n (free self-hosted or $20/month cloud). Scalable to 200 docs/week with Pro tiers.\n\nInstall n8n via n8n.io or cloud.n8n.io. Get Mistral key at console.mistral.ai (embeddings). Set up Qdrant at cloud.qdrant.io (create collection). Get OpenAI key at platform.openai.com (chat). Set MISTRAL_KEY, QDRANT_URL/KEY, OPENAI_KEY env vars. Import JSON; webhook POST 'legal-document-processing'. Configure Vector Store with collection.\n\nTest: Upload PDF, query via chat 'What is Title 15 USC?'. Verify cited response. Errors: Invalid doc (skip), no query (prompt). Activate triggers. Monitor dashboard weekly. Optimize sections; refresh keys quarterly.", "businessValue": "Saves 10-15 hours/week managing 50 legal docs", "setupTime": "30-45 minutes", "difficulty": "Intermediate", "requirements": ["Mistral Cloud ($0.25/1M tokens)", "Qdrant ($0.10/GB/month)", "OpenAI API ($0.03/1k tokens)", "n8n instance"], "useCase": "AI-powered RAG for multi-jurisdiction legal research"