Legal Due Diligence Document Extraction
A UK law firm reduced manual document review time by 76% across 40,000 contracts in a mid-market M&A transaction, using ML-powered extraction integrated into their existing document management system.
The Challenge
The firm was engaged to conduct due diligence on a mid-market acquisition involving 40,000 contracts spanning supplier agreements, property leases, employment contracts and IP licences. Manual review by a team of associates was estimated at 14 weeks. The client required completion in six weeks. The firm needed to extract 23 specific data points from each contract, verify them against a master register, and flag any non-standard clauses or change-of-control provisions. SRA obligations required the firm to maintain oversight and document every AI-assisted decision.
The Trovix Approach
Trovix deployed a document intelligence pipeline integrated directly into the firm's iManage document management system. A fine-tuned extraction model identified and extracted the 23 required data points from each contract, flagging documents that fell below a confidence threshold for human review.
Every extraction was logged with a confidence score and a source reference pointing to the exact clause in the original document. Associates reviewed flagged documents and all low-confidence extractions. The final deliverable was a structured data register with full audit evidence of both AI-assisted and human-reviewed entries.
Technical Architecture
AI model: Fine-tuned document extraction model + clause classification
Output: Structured Excel/CSV register with confidence scores and source citations
Governance: SRA-compliant audit log, tiered human review for low-confidence extractions
Deployment: Inside the firm's own cloud tenant — no data left the firm's boundary
Outcome
The 40,000 contract review was completed in five weeks, one week ahead of the client's deadline. Manual review time fell by 76%. Extraction accuracy across the 23 data points was 94%, with zero SRA compliance issues raised post-delivery. The firm subsequently engaged Trovix for a permanent document intelligence integration.
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