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LegalTech Lexara Associates (Law Firm, UK/India) United Kingdom / India 4 months

AI Contract Management Platform for Mid-Market Law Firm

Lexara Associates, a 45-lawyer UK/India cross-border law firm specialising in M&A and commercial contracts, was reviewing contracts using a combination of Word tracked changes, email chains, and a shared network drive.

55 min (from 4.5 hrs)
Contract review time
94% (vs 76% manual)
Clause deviation detection rate
0 (from 2/year)
Version control incidents
0 in 12 months
Obligation deadline misses
14 hrs/week
Partner review time freed
6 days (from 19 days)
Contract cycle time

The Challenge

Lexara Associates, a 45-lawyer UK/India cross-border law firm specialising in M&A and commercial contracts, was reviewing contracts using a combination of Word tracked changes, email chains, and a shared network drive. Contract review time averaged 4.5 hours per document. Version control was a persistent problem — incorrect contract versions had been executed twice in the previous year. No contract obligation tracking post-execution.

Our Solution

Canny built an AI contract management platform with GPT-4o-powered review (clause extraction, deviation flagging, risk scoring), version-controlled negotiation workflow, e-signature integration, and post-execution obligation tracking with automated deadline alerts.

Technical Architecture

React frontend, Node.js API, PostgreSQL

GPT-4o for contract analysis with RAG from clause library (pgvector)

PDF.js + custom text extraction for contract parsing

DocuSign API for e-signature workflow

Temporal workflow engine for obligation deadline scheduling

AWS S3 with versioning for document immutability

Technologies Used

ReactNode.jsPostgreSQLpgvectorGPT-4oDocuSign APITemporalAWS S3

Project Timeline

1

Clause Library and AI Foundation

5 weeks
  • Clause library creation: 380 standard clauses across 12 contract types
  • Vector embedding of clause library (pgvector/OpenAI embeddings)
  • GPT-4o contract analysis pipeline with RAG
  • Clause deviation detection against firm standard positions
  • Risk scoring framework design with senior partner input
2

Contract Workflow and Versioning

6 weeks
  • Matter-based contract organisation
  • Version-controlled document management with diff view
  • Negotiation workflow with counterparty comment resolution
  • DocuSign e-signature integration
  • Clause-level annotation and commenting
3

Obligation Tracking and Analytics

5 weeks
  • Post-execution obligation extraction from signed contracts
  • Temporal workflow engine for deadline scheduling and alerts
  • Renewal and expiry calendar across entire contract portfolio
  • Contract analytics: avg cycle time, deviation frequency, risk distribution
  • Client portal for shared contract access

“Our partners were spending 40% of their time on first-pass contract review. Now the AI does the first pass — every clause against our standard positions — and lawyers review the delta. We cut review time by 80% without reducing quality. If anything, the AI catches things we used to miss.”

— Priya Sharma, Managing Partner — Lexara Associates

Long-Term Impact & ROI

Lexara's partners freed 14 hours per week each for client-facing work, increasing billable hours without increasing headcount. The platform enabled a 25% increase in client capacity. The firm launched a contract-as-a-service offering to corporate clients based on the platform.

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