Building a $0 Texas Real Estate Wholesale Pipeline: PostgreSQL, FastAPI, and VAPI Agents at Scale

OPENING: We built a complete real estate wholesale automation system for Load Bearing Capital that processes Harris County tax delinquent records and 311 violations through a PostgreSQL schema, FastAPI backend, and three specialized VAPI agents—without paid skip tracing. This article breaks down the technical stack: how we scraped public county records, implemented lead scoring with stack multipliers, integrated free TruePeopleSearch skip tracing, orchestrated Marcus (initial outreach), Sarah (follow-up), and James (closing) agents through VAPI, and deployed everything on Railway for under $100/month. If you're building a wholesaling operation or scaling lead generation, here's exactly how we automated the entire pipeline from data ingestion to closing conversations.