Undervalued Property Sourcing Tool

I'm looking for a developer to create a property deal sourcing tool aimed at identifying undervalued properties. The tool should aggregate listings from major property websites, estate agent websites, and public auction/government listings.

Key requirements:
- Flag potential undervalued deals based on:
- Asking price compared to nearby sold prices
- Rental income and expected return
- Condition, size, and renovation potential

Ideal skills and experience:
- Proficiency in web scraping and data aggregation
- Experience with real estate market analysis
- Strong programming skills (Python, JavaScript, etc.)
- Familiarity with property valuation metrics

Please provide examples of similar work done.