The Challenge
With offices across North America, Europe, and Asia-Pacific, this AmLaw 50 firm processed over 12,000 commercial contracts annually. Their M&A practice alone reviewed more than 400 target company agreement sets per year during due diligence — each requiring detailed analysis of representations, warranties, material adverse change provisions, and change-of-control clauses.
Associates spent an average of 6.4 hours reviewing a standard commercial agreement from first pass to partner sign-off. During peak M&A periods, the firm struggled to staff transactions adequately — deals were delayed, associates worked unsustainable hours, and the firm turned away business it couldn't resource. Partners estimated that 40% of associate time on contract review was spent on tasks that didn't require legal judgment: reading standard boilerplate, checking formatting consistency, and cross-referencing defined terms.
The firm had experimented with legacy contract review tools, but adoption failed due to poor accuracy on complex negotiated language and an interface that attorneys found cumbersome. They needed a solution that could handle sophisticated legal drafting — not just simple clause extraction.
Our Approach
01
Diagnostic and Use Case Prioritisation
We spent two weeks shadowing associates and partners across three practice groups — M&A, commercial, and real estate — to map exactly where time was spent and which tasks Claude could most reliably assist with. We identified contract review, due diligence summary drafting, and first-pass issue spotting as the highest-impact targets.
02
Prompt Library Development
Working with the firm's senior associates and partners, we built a library of 47 practice-specific Claude prompts covering the most common review tasks: representations and warranties analysis, closing conditions review, indemnification clause mapping, covenant extraction, and due diligence checklist completion.
03
Governance and Confidentiality Framework
We worked with the firm's General Counsel and Risk Management committee to establish usage policies, data handling procedures, and client disclosure protocols. Claude is deployed exclusively through Claude for Enterprise, ensuring no training on client documents and full audit logging.
04
Phased Rollout and Training
We trained 180 associates across three practice groups over six weeks — starting with lowest-risk use cases (first-pass summaries) before advancing to more complex workflows. Sceptical partners were paired with pilot associates to observe outputs directly before endorsing firm-wide adoption.
05
Measurement and Optimisation
We established baseline metrics before deployment and tracked review time, accuracy rates, associate hours per matter, and partner revision time monthly. Prompts were refined based on real-world performance data — the prompt library improved 3 times during the first six months.
The Results
⚡
40% Faster Contract Review
Average first-pass review time dropped from 6.4 hours to 3.8 hours per agreement. For due diligence projects, the firm now completes initial analysis 40% faster than before deployment.
📈
3× Associate Throughput
Associates now handle three times the number of agreements per week during peak periods. The firm accepted two major transactions during Q3 that it would previously have had to decline due to capacity constraints.
💰
$3.8M Annual Value Created
Partner and senior associate time freed from routine review has been redirected to higher-value work. The firm attributes $3.8M in incremental annual revenue to transactions it can now take on that previously exceeded capacity.
🎯
Issue Detection Improvement
Claude-assisted reviews have a 12% higher rate of flagging non-standard provisions than unassisted review alone — because associates follow a structured checklist rather than relying solely on experience and memory.
Key Insights
Start with Sceptics, Not Enthusiasts
The firm's early adopters were enthusiastic associates — but the critical inflection point came when two sceptical senior partners agreed to pilot Claude on real matters and were persuaded by the output quality. Their endorsement unlocked firm-wide adoption faster than any training programme could.
The Prompt Library Is the Product
Generic prompts produce generic results. The 47 practice-specific prompts we built — developed directly with experienced attorneys — are what make Claude genuinely useful rather than merely interesting. Invest time here.
Measure What Partners Care About
Associates care about saving time. Partners care about client outcomes and matter economics. Track both — and report to partners in their language: write-offs avoided, capacity created, transactions enabled.
Governance Builds Trust
The firm's detailed client disclosure protocol and usage policy gave risk-conscious partners the confidence to adopt. Don't treat governance as a compliance box — treat it as the enabler of adoption.
