Automated Real Estate Deal Finder: 30x Milwaukee Deal Coverage

A real estate investor was screening Milwaukee, Waukesha, and Racine County listings by hand. Every day: open Zillow, filter manually, copy properties into a spreadsheet, cross-reference rent estimates. It took over 20 hours a month and still only surfaced 10 properties a week.

The bottleneck wasn't effort. It was a process that couldn't scale.

30x deal coverage: 300+ properties screened weekly vs 10 manually

20 hours/month reclaimed: fully automated, zero daily input required

Dual-scenario ROI on every property: all-cash and financed projections calculated automatically

System cost: $144/month vs $1,356/month in time value recovered

Before: manual Zillow browsing, spreadsheet tracking, no consistent rent data, deals missed between sessions.

After: automated pipeline runs every morning, filters to qualified deals only, delivers a formatted Gmail summary with full financial breakdown before Dane starts his day.

A daily n8n workflow that runs at 6am, scrapes current Zillow listings across three Wisconsin markets using Apify, applies a three-stage filter, pulls rent estimates from RentCast, calculates dual-scenario ROI, deduplicates against Google Sheets history, and delivers a formatted Gmail alert for any property hitting the 12% cash-on-cash threshold.

Trigger: n8n schedule runs at 6am daily

Scrape: Apify pulls all active listings from Milwaukee, Waukesha, and Racine County

Pre-filter: Remove listings outside 1-4 units, strip excluded zip codes, remove bank-owned properties

Rent estimate: RentCast API returns address-level monthly rent for each qualifying property

ROI calculation: Two scenarios computed: all-cash return and financed return (using 10-10-9-8 expense model for taxes, insurance, maintenance, vacancy)

Deduplication: Google Sheets tracker removes any property already seen in previous runs

Delivery: Gmail formats and sends a daily digest with full financials for every deal above the threshold

n8n (self-hosted) — workflow orchestration

Apify — Zillow scraper

RentCast — address-level rent estimation API

Google Sheets — deduplication tracker

Gmail — formatted daily delivery

The architecture is ready to extend: predictive pricing ML layer, multi-market expansion beyond Wisconsin, portfolio tracking for properties already owned. The core pipeline doesn't change. New markets are a config update.