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Microsoft launches Copilot for Legal with partner plugins from Harvey, Legora and others

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19

Why it matters

Microsoft has launched Copilot for Legal, a set of legal-industry plugins that bring specialized sources into its Copilot assistant. The partner-built plugins cover legal research, document and matter management, agreements and e-signature, legal AI, and e-discovery. Named partners include Docusign, Juro and Adobe Acrobat Sign for agreements; Harvey, Legora and DeepJudge for legal AI; and Everlaw and Relativity for e-discovery. The plugins begin rolling out today through the Microsoft plugin registry, with more becoming available over time. Microsoft describes the launch as the fourth move by a major AI company to build out a legal vertical in five months.

Several details remain open. The research does not establish how much of the rollout is live for customers today versus slated for later, or whether any pricing has been set. The Legora–Laurel partnership, announced October 13, is also still early. Laurel will turn every task a lawyer completes in Legora into a time entry, tagged with client, matter and work performed, for lawyer review. The two companies plan to develop jointly ways to measure Legora usage and the value of AI-powered legal work, but no metrics or timeline have been published. Separately, on October 14, Legora announced more than 30 integrations across nine enterprise technology categories, including SharePoint, Copilot, Outlook and Teams.

For firms, the practical question is where legal AI work will live. Microsoft is positioning Copilot as a hub for legal workflows, which could shift competition among legal AI vendors toward integration within platforms firms already use. Attorneys should check which of the named plugins their firm's Microsoft environment supports, and whether their vendors' data handling terms cover Copilot access. The Legora–Laurel deal signals a parallel push to tie AI use directly to billing, so firms evaluating AI tools should expect vendors to offer time capture and usage reporting as standard. Weeks earlier, OpenAI launched Astra for Law, a legal research platform with 26 partner plugins, which suggests the major AI providers are competing for the same legal workflows.

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