Foxhound is a deterministic PreSales Operating System designed for boutique real estate developers operating in high-trust financial environments. The platform combines inventory orchestration, reservation lifecycle management, AI-assisted operational execution, cryptographic verification, and adaptive multi-tenant infrastructure into a unified operational environment. Rather than behaving like a generalized CRM, Foxhound was architected as a constrained execution system where every state transition carries financial implications. The project explores how bounded AI systems can safely operate inside enterprise-grade workflows through deterministic infrastructure, AST query rewriting, cryptographic action verification, and adaptive orchestration layers. The interface philosophy intentionally rejects hyperactive SaaS aesthetics in favor of calm, procedural, operational clarity.