Research Briefings

Research briefings

Original, data-driven reports on how the legal industry is adopting — and governing — AI. Reader-funded and conflict-free.

No. 066
10 min

The Legal AI Vendor Lock-In Risk Report 2026: How Deep Is Platform Dependency Across Law Firms and Legal Departments — and What Exit Plans Actually Exist

Vendor lock-in has always been a feature of enterprise software procurement. What is different about legal AI is the speed at which dependency compounds, the opacity of data architecture, and the near-total absence of institutional exit planning. Based on practitioner interviews conducted between January and...

June 14, 2026

No. 065
10 min

The Legal AI Data Residency Compliance Report 2026: What Law Firms and Legal Departments Actually Know — and Don't Know — About Where Their Matter Data Is Being Processed

A Research Briefing | The Legal Stack | AI Governance & Data Privacy

June 12, 2026

No. 064
10 min

The Legal AI Bar Compliance Gap Report 2026: How State Bar AI Guidance Has Evolved in the First Half of 2026 — and How Far Actual Firm Policy Lags Behind

Thirty-one state bars have now issued some form of AI-related ethics guidance, up from nineteen at the close of 2024. Eight of those thirty-one bars have issued formal ethics opinions carrying binding or near-binding precedential weight. The remainder have produced informal guidance, FAQs, or standing...

June 11, 2026

No. 063
10 min

The Legal AI Vendor Transparency Report 2026: What Legaltech Platforms Are Actually Disclosing About Model Architecture, Training Data, Update Cadence, and Accuracy Limitations — and What Buyers Can't Find Out

Legal AI procurement has matured considerably since 2023, but the transparency infrastructure supporting it has not kept pace. A systematic review of publicly available documentation, terms of service, and marketing materials for the 15 most widely deployed legal AI platforms as of Q2 2026 —...

June 10, 2026

No. 062
10 min

The Legal AI Talent Attrition Report 2026: Are Law Firms Losing Their Best Technologists to Legaltech Vendors — and What Is It Actually Costing Them

Prepared by The Legal Stack Research Team | Market Intelligence Briefing | Q2 2026

June 09, 2026

No. 061
10 min

The Legal AI Return on Investment Reality Check 2026: What Law Firms and Legal Departments Are Actually Measuring — and How It Compares to What They Projected at Deployment

The Legal Stack Research Briefing | Legal Economics Series

June 08, 2026