About PropDossier

PropDossier provides AI-assisted, county-verified fix-and-flip due diligence reports. Founded in 2026. Based in Orange County, California. Reports available for any U.S. residential address.

Founded2026

HQOrange County, CA

CoverageAny U.S. residential address

What PropDossier is

One address in, one due diligence report out: listing versus county records, comps adjusted line by line, an after-repair value range, a sensitivity matrix. Every figure links to its public source.

Why we built it

Listing said

3,367 sqft

$120 / sqft

−36% living area

County said

2,483 sqft

+ 884 unfinished basement · $163 / sqft

We flip houses ourselves, and we walked into this one: the portal counted the basement, and the "bargain" vanished once the county record was in hand (see the sample report for 6122 Fawcett Ave). PropDossier runs this check on every address, before money is committed.

How a report is produced

Listing + County

County wins, gaps flagged

Comps line by line

Verified sales, item-by-item adjustments

Price points + sensitivity

ARV range, what-if matrix

Independent review

Second pass on every figure

Full methodology →

What a report is, and is not

A report is

County-verified numbers
A source link on every figure
Reference lines for investors

A report is not

Not an appraisal
Not a brokerage
Not investment advice

A PropDossier report is a research document for informational purposes only. It is not an appraisal or a valuation opinion under any state appraisal law; not a brokerage service, and we do not act as an agent for any party; and not investment, legal, tax, or lending advice. Price points in a report are investor reference lines, not a recommendation to offer a specific amount. Readers should verify all figures independently and consult licensed professionals, including an inspector, before transacting.

Independence

No broker commissions No lender referral fees We don't transact

The conclusion comes from county records and comps, and is the same whether you buy or walk away.

Coverage and languages

Any U.S. residential address, same method against each county's records.

Published by PropDossier Research. Page first published 2026-08-23.

FAQ

Who is behind PropDossier?

PropDossier is run by a small team of active fix-and-flip investors and data engineers. Reports are published under the PropDossier Research byline. We build the reports we wanted for our own deals.

Are you a brokerage or an appraiser?

No. PropDossier is not a real estate brokerage, not a licensed appraiser, and not a lender. A report is a research document that organizes public records and listing data; it is not an appraisal, brokerage service, or investment advice.

Which areas do you cover?

Reports are available for any residential address in the United States, using the same method against each county's public records.

How is a report priced?

Sample analyses are currently free while we finish the product. Formal pricing has not been announced yet. Use the form on the home page to request a sample for a specific address.

Want this done for a specific address?

Get a free sample analysis

Published 2026-08-23 · Updated 2026-08-23 · PropDossier Research