information
no one else has.

5.2 million mortgages under 4% are sitting inside houses for sale right now. They're assumable by federal law. Almost nobody knows how to find them.

the engine

shinnslist reads public records — parcel data, tax assessments, ownership filings — and finds what matters: who's likely holding a sub-4% assumable loan, who's showing the signs of wanting to sell.

This is OSINT. Public information, assembled in ways no one else bothers to assemble.

why it matters

One assumable 3% mortgage on a $400k house saves ~$700/month versus today's rates. That's $8,400 a year. Wholesalers, agents, buyers — anyone who finds these first wins.

The demo on our homepage looks like a toy. The data behind it is worth six figures to the right person.