Firms built around artificial intelligence are drawing senior attorneys away from several of the nation’s biggest law firms, putting pressure on conventional staffing models, fee structures and the cost framework of legal service delivery. The most recent move sees Leon Johnson, who serves as a private-equity and growth-equity partner at Goodwin Procter and previously practiced at Kirkland & Ellis, declare on 14 October 2026 his intention to head a newly formed U.S. firm named OmniLex Partners.
A New Approach to Legal Practice
Omnilex AI, a legal-tech firm founded in Zurich, is linked to the new practice, which seeks to construct its service model on artificial intelligence instead of inserting the tools into a pre-existing framework. In an interview with Reuters, Johnson said that recent AI progress led him to rethink the conventional organization of big commercial firms, in which junior associates perform most of the work before it passes through multiple senior-review stages.
He argues that AI may allow seasoned attorneys to take on a greater share of tasks themselves, lessening dependence on extensive groups of junior staff. OmniLex intends to emphasise project-based services, outcomes and fixed fees rather than relying primarily on the billable hour. The firm will initially concentrate on venture capital transactions, startup legal services and routine, high-volume litigation.
Johnson’s departure is one of several recent instances where senior lawyers have exited traditional firms to join AI-centric ventures. Mike Schmidtberger, who previously chaired Sidley Austin’s executive committee, became part of Norm Law in January 2026 and currently holds the positions of chairman and head of private-funds and regulatory matters. Christopher Kercher, the founder of Quinn Emanuel Urquhart & Sullivan’s AI and data-analytics unit, has similarly started a litigation practice centered on artificial intelligence.
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Structuring the Future of Law
This trend signals an expanding curiosity about models that differ from the classic partnership structure, especially among attorneys convinced that AI can reshape the organization and pricing of legal services. Historically, big law firms have depended on associate teams whose billable hours drive firm revenue and partner earnings. AI systems can assist with tasks including document review, legal research, contract analysis and drafting, potentially allowing some work to be completed with smaller teams.
OmniLex intends to adopt a management-services-organization model that isolates specific technology and back-office activities from the regulated legal entity, while maintaining the professional autonomy of its lawyers. Arrangements of this type can enable affiliated businesses to secure capital investments while still being bound by the professional regulations that oversee legal service delivery.
Market Response and Outlook
The growing market is also attracting attention from legal recruiters. Sean Burke, founding partner of Whistler Partners, told Reuters that both associates and senior partners have shown considerable interest in opportunities at AI-native firms. Whether that interest develops into a substantial shift away from traditional firms remains uncertain.
