County Lead Intelligence

The problem

Investors look for motivated sellers — pre-foreclosures, probate, evictions, tax delinquencies — but those signals are buried in dozens of incompatible county recorder, court, and assessor systems, many behind captchas, logins, or bot protection.

What I built

A per-client lead platform: scrapers for each county run every morning, resolve each filing to a parcel and owner, estimate equity, skip-trace contact details, and push the results into a filterable dashboard and the client's CRM. I was the lead backend engineer across deployments covering ten states.

Core features

• -Daily scheduled scrapes per county with live progress streaming to the dashboard
• -Filing → parcel → owner resolution through assessor and GIS parcel layers
• -Estimated equity, replaced by real loan balances when a PropStream export is imported
• -Automatic skip tracing with per-batch spend caps
• -Idempotent CRM push that never creates duplicate records on retry
• -Lead table with facet filters, zip filtering, list stacking, and CSV export

Engineering highlights

• -Turned an ASP.NET recorder search that "needed a real browser" into a plain HTTP scraper by reproducing its hidden date-picker state
• -When a county index couldn't place a filing, read the recorded document itself — OCR on scanned TIFFs or the PDF text layer — and cross-checked the result, because a wrong address is worse than a missing one
• -Transport ladder (direct → scraping API → residential proxy) with challenge-page detection so a blocked response never counts as success
• -Per-source scrape trace (fetched → parsed → kept → reasons) persisted to the database, so "why did this county return 0 leads?" has an answer
• -Equity model from assessor value and historical mortgage rates, amortized to today and labelled as an estimate

Tech stack

Impact

• -Going direct to one county's recorder surfaced 27 trustee sales in two weeks, where the previous source had produced 1 lead for the whole month
• -Scrapers live across ten states, each deployment tailored to its counties and lead types
• -25-file test suite on the main deployment