Three products. One data engine.
Sentry Lake assembles public-record sources market by market — deep analysis report by report, a finder that surfaces candidate parcels in bulk, or a watcher that alerts you the moment records change.
Products
Resolve an address to its parcel and get a deep, structured report: assessed & market value, tax history, sales, structure and permits, neighborhood context, risk overlays, and the analysis modules below — compiled into one downloadable report.
Set your criteria — county, budget range, property type, and whether you want motivation-flagged sellers — and the finder suggests candidate parcels in bulk, each with a lean profile (value, taxes, odds, motivation signal). Upgrade any lead to a full analysis.
Watch any parcel you've already searched and get alerted the moment county records change — new permits, sales, tax liens, and estimated-value swings. Act before the market catches on.
Analysis modules
Built into every full property analysis report.
We weight public signals — occupancy state, tax & lien status, listing velocity, ownership tenure, and mortgage pressure in public filings — into a motivation read on the owner. A tool for engagement timing, never for contact.
Zoning classification, lot dimensions and utilization, buildable area, setback and coverage potential, subdivision and plat context, and height or FAR limits where public. See what a parcel can actually become.
The report applies its numbers to the plays you care about — buy & hold, fix & flip, BRRR, house hack, short-term rental, or multi — with rent math, ARV intuition from public comps, tax load, and risk flags ranked per strategy.
Feed a list of addresses or PIDs and receive structured reports for each parcel as one bundle — built for teams running portfolio-level analysis and volume underwriting.
Machine-readable reports in JSON, YAML, or Markdown, with API access and webhooks for platforms and funds running their own pipelines.