Security questionnaires are a bottleneck for many SaaS providers, demanding precise, repeatable answers across dozens of standards. By generating high‑quality synthetic data that mirrors real audit responses, organizations can fine‑tune large language models (LLMs) without exposing sensitive policy text. This article walks through a complete synthetic‑data‑centric pipeline, from scenario modeling to integration with a platform like Procurize, delivering faster turnaround, consistent compliance, and a safe training loop.