The Verification Tax. Professional Privilege, Institutional Governance, and the Limits of Generative Legal Technology

This Article introduces the Verification Tax—the irreducible institutional cost of converting algorithmic outputs into legally imputable acts—and proposes the Three-Pillar Test for determining whether an entity satisfies the conditions of legal accountability. The test formalizes three copulative conditions: Deliberative Suspension, Evaluation without Determination, and Signature-as-Commitment. Application to Anthropic’s Claude Cowork Legal Plugin yields a triple negative, and rereading United States v. Heppner (S.D.N.Y. 2026) through the test confirms that existing doctrine already imposes structural friction when generative systems enter legal practice. The Article proposes Privilege-Grade GenAI as an implementable governance architecture that operationalizes the three pillars as verifiable institutional controls.