Mortgage Glossary — Plain English

Terms & Acronyms

Listed roughly in the order you’ll encounter them in your case.

Deed of Trust(DOT)

Your mortgage. The recorded document that secures the loan against your home and gives the lender the right to foreclose if you stop paying. In Washington, the Deed of Trust names three parties: you (the borrower), the lender (the beneficiary), and the trustee (who runs the auction if it ever comes to that).

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Promissory Note(Note)

The IOU you signed at closing. It is the actual debt obligation — separate from the Deed of Trust, which is just the security. Whoever physically holds the original Note with an unbroken endorsement chain is the party legally entitled to enforce it.

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Assignment of Deed of Trust(AST)

A recorded document transferring the loan (the security interest in your home) from one bank to another. Every time your loan was sold or transferred, there should be a recorded Assignment — gaps or backdated assignments are a common defect.

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Substitution of Trustee(SOT)

A recorded document replacing the original trustee named in your Deed of Trust with a new one — usually right before foreclosure starts. In Washington, only the current beneficiary (the actual note holder) has authority to substitute.

Notice of Default(NOD)

The first formal foreclosure warning letter — sent before the auction notice can legally issue. Under RCW 61.24, it must give you at least 30 days to cure the default and must accurately state who the beneficiary is.

Notice of Trustee Sale(NOTS)

The auction notice. Under Washington law (RCW 61.24.040) it must be recorded and served at least 90 days before the sale date. A defective NOTS is one of the strongest grounds for a temporary restraining order.

Beneficiary Declaration

A sworn statement the servicer hands the trustee, claiming the bank holds your Note. RCW 61.24.030(7) requires this before a trustee may issue a Notice of Trustee Sale. False or hearsay declarations are a recurring defect.

Allonge

An extra page physically attached to the Promissory Note when the original Note runs out of room for endorsements. A floating, unattached allonge — or one that appears after litigation starts — is a red flag.

Power of Attorney(AIF / POA)

A document authorizing one party to sign legal instruments on behalf of another. "AIF" means "Attorney-In-Fact." In foreclosure, servicers often sign assignments as AIF for an investor. Under RCW 11.125.050 the POA itself must be recorded for the AIF signature to be valid on land documents.

Forbearance Agreement

A short-term pause-payments agreement. Payments are deferred, not forgiven — they usually come due in a lump sum or on a repayment plan when the forbearance ends.

Loan Modification(HAMP / In-house Mod)

An agreement permanently changing your loan terms — lowering the interest rate, extending the term, or capitalizing arrears. HAMP was the federal program (2009–2016). A modification signed by a party without authority over the Note may be void.

Qualified Written Request(QWR)

A written request to your servicer for information about your loan, sent under RESPA (12 U.S.C. § 2605(e)). The servicer must acknowledge within 5 business days and substantively respond within 30. Failure to respond is itself a federal violation.

Notice of Error(NOE)

A specific kind of letter, under 12 C.F.R. § 1024.35, telling your servicer they made a mistake — wrong payoff, misapplied payment, dual-tracking, etc. The servicer has 30 business days to correct or explain.

Request for Information(RFI)

A letter under 12 C.F.R. § 1024.36 asking your servicer for specific loan information — note holder identity, ownership history, fee breakdowns. Companion to the NOE.

Real Estate Settlement Procedures Act(RESPA)

The federal statute (12 U.S.C. § 2601 et seq.) that governs how your servicer must handle your loan — payment application, escrow, error resolution, and loss mitigation. Violations give you a private right to sue.

Fair Debt Collection Practices Act(FDCPA)

The federal statute (15 U.S.C. § 1692 et seq.) that limits how third-party debt collectors can contact you. Trustees and servicers who acquired your loan after default may be FDCPA debt collectors.

Pooling and Servicing Agreement(PSA)

The contract that created the mortgage-backed-securities trust your loan was sold into. The PSA sets a hard deadline (the "closing date") by which loans had to be deposited. Loans transferred after that date were never validly held by the trust under New York trust law.

Mortgage Identification Number(MIN)

The 18-digit number MERS assigns to each loan it tracks. The first 7 digits identify the original lender. You can look up the current servicer at mers-servicerid.org.

MERS(Mortgage Electronic Registration Systems)

A private electronic database the big banks created in the 1990s to track loan transfers without recording them at the county. In Washington, Bain v. MetLife (2012) held MERS cannot be a "beneficiary" under the Deed of Trust Act — making MERS-listed assignments a common defect.

REMIC(Real Estate Mortgage Investment Conduit)

The tax classification (26 U.S.C. § 860D) most mortgage-backed-securities trusts elect. To keep REMIC status, the trust cannot accept loans after its PSA closing date — which is why late-recorded assignments to a "trust closed in 2007" are suspect.

Robo-signing

When a bank or trustee employee signs hundreds of foreclosure documents per day without personal knowledge of what is in them. The signature is technically authentic but the underlying declaration is hearsay. In our reports and letters we call this "signed without personal knowledge."

Void vs Voidable

A void document has no legal effect from day one — anyone can challenge it at any time. A voidable document is valid until someone with standing successfully challenges it. In Washington, a Deed of Trust signed by an entity that lacked authority to act as beneficiary is generally void; a defectively-witnessed assignment is generally voidable.

IRAC

Issue / Rule / Application / Conclusion — the standard legal-writing structure courts expect. Each finding in your Mortgage Defender report is an IRAC chain: this is the issue, this is the statute, this is how it applies to your documents, this is the conclusion.

V-codes (V01, VB60, etc.)

Internal defect codes Mortgage Defender uses to track which of the 114 known foreclosure defects appears in your documents. "V" codes are VOID defects (the document has no legal effect). "VB" codes are VOIDABLE defects (the document is challengeable). Stoppers (like VB60–VB63) are defects strong enough on their own to halt a Washington trustee sale.