Seller-stated vs. verified mortgage note data

A mortgage-note listing is a starting statement from the seller, not a finished diligence record. The seller may be completely accurate. The problem is that you do not know which statements are accurate until you compare them with evidence that can actually support the claim.

That distinction matters because note math is deterministic. If the property value, lien position, payment status or note terms are wrong, a calculator can produce a perfectly correct answer to the wrong deal.

NoteGage keeps four information classes apart to stop that from happening. The methodology sets out the rules; this article shows them at work.

A seller-stated value does not become verified because it appears in two seller-supplied documents. A recorded mortgage does not automatically prove lien priority. A payment ledger through last year does not prove the borrower is current today.

A worked example: one number changes the apparent deal

Consider the sanitized deal shown in the NoteGage sample report. The seller stated a property value of $189,000. The independent property evidence clustered lower:

• County assessor: $154,440
• Independent AVM: $158,837
• Comparable-sales estimate: $163,534

Those independent sources supported a range of $154,440 to $163,534. NoteGage used the low end as the underwriting basis while keeping the seller's $189,000 claim visible rather than deleting it. That one evidence change altered several ratios on the same deal:

That is exactly why provenance matters. Some inputs affect collateral risk. Others affect contractual cash flow. If you blur them together, you cannot tell which conclusion moved and why. The full story of this deal is in Price from the record, not the claim.

Repetition is not independent corroboration

Suppose a listing says the property is worth $200,000 and the seller also provides a spreadsheet that says $200,000. You have two documents, but you may still have only one underlying claim. Before calling something independently supported, ask where the information originated. Evidence is stronger when it comes from a source that did not merely copy the seller's representation.

That does not make seller-provided material useless. A seller-supplied appraisal, BPO, payment history or collateral document can be important evidence. It simply needs to be labeled accurately, so the reader knows whether it is independent, seller-provided, calculated or unresolved.

Compare like with like before calling a conflict

Two numbers that differ are not automatically contradictory. First test whether they describe the same property, the same collateral scope, the same date and the same concept of value; a multi-parcel appraisal against a one-parcel assessor record, or a five-year-old sale against a current AVM, is a difference in what was measured, not a conflict. Only after those tests should you decide whether the evidence supports, fails to corroborate, or materially conflicts with the seller's claim. The property value verification guide gives the four-question test in full and works it through a reconciliation.

Missing evidence should stay missing

One of the easiest diligence errors is converting “not found” into a factual conclusion.

• No recorded assignment found does not prove there was never a transfer.
• No current payment ledger does not prove the borrower stopped paying.
• A county record showing one mortgage does not prove there are no title exceptions or priority issues.
• An appraisal that was never provided does not become zero value.

The correct state is often unresolved, followed by the evidence that would resolve it.

Turn every important claim into a source trail

1. Preserve the seller's original statement.
2. Identify the source and effective date of every material fact.
3. Gather the evidence available for that claim.
4. Check whether apparently conflicting evidence is actually comparable.
5. Assign a status that matches the evidence, not the desired result.
6. Feed the qualified input into the math.
7. Recalculate every downstream metric affected by the changed input.
8. Convert unresolved facts into named diligence questions.

What should be independently checked before a bid?

The highest-leverage claims are usually:

• property identity and collateral value;
• unpaid principal balance and contractual terms;
• payment status and seasoning;
• claimed lien position and known senior debt;
• the transfer and assignment story;
• taxes or other property-level claims that can change recovery;
• the purchase price and any balloon or maturity assumptions that drive yield.

Not every fact can be independently verified from software or public records. That is not a flaw in the analysis. The important thing is to say where the evidence stops. Lien position verification and the collateral file guide set out those limits for the two claims that most often need title and document work; How it works shows the order NoteGage runs these checks in.

FAQ

Is seller-stated data wrong by definition?

No. Seller-stated means the fact has not yet been independently established by the evidence available to the analysis. It may later be corroborated exactly.

What is the difference between “not corroborated” and “contradicted”?

“Not corroborated” means the independent evidence does not sufficiently support the claim. “Contradicted” requires stronger evidence that actually establishes a materially different fact. When evidence is mixed or incomplete, keep the state narrower.

Can public records prove lien position?

Recorded records can materially corroborate the lien story, but they are not a substitute for current title or O&E work. Priority can depend on documents and legal facts outside a simple recorder search.

Why keep the original seller claim after finding a better number?

Because the discrepancy is itself useful diligence information. It also preserves the audit trail: what was offered, what the evidence later supported, and which calculations changed as a result.