Compliance Crew is a multi-agent AI system that closes the loop between the three documents every residential project depends on — spec book, analytical budget, BIM model. A project manager, a technical auditor, and three discipline specialists (Claude Sonnet for synthesis, Haiku for focused surgery) work in a six-task cascade: read, audit against three national code families, rewrite each document, validate. Every correction is traceable end-to-end, from the manager's parecer back to the specific code clause that triggered the edit. Built on CrewAI, IfcOpenShell, python-docx, openpyxl.