Microsoft Launches Legal Agent in Word for Contract Review

Microsoft launched its Legal Agent in Microsoft Word on April 30, 2026, bringing structured AI-driven contract review directly into the word processor used by millions of legal teams worldwide.

This matters because it signals a shift from general-purpose AI tools toward purpose-built legal workflow automation embedded in software that legal professionals already use daily.

What It Does

The Legal Agent handles contract review, redlining, and playbook-based analysis inside Word on a Windows desktop. It reviews contracts clause by clause, flags provisions that do not meet internal standards, and generates negotiation-ready redlines with tracked changes.

The agent also works on documents that already contain tracked changes. It separates prior revisions from new proposals, so negotiation history stays intact throughout the review process.

How It Works

The agent does not rely entirely on a large language model to generate every edit. According to Sumit Chauhan, President of the Microsoft Office Product Group, "The agent applies edits in the document through a purpose-built insertion algorithm to drive consistency regardless of how each edit was introduced."