A subject-to file rarely dies because the terms were wrong. It dies because a document that everyone assumed existed turns out never to have been drafted, and it surfaces four days before closing.
Here is the set. Yours may need more depending on your state and the structure — this is the floor, not the ceiling.
Not legal advice. These are documents transactions commonly require. Which ones apply to your deal, and what they need to say, is a question for an attorney licensed in the property's state. Exit First coordinates files and prepares documents from written terms. We do not practice law.
1. The purchase contract, with the structure written into it
Not a standard cash contract with a handshake about the loan staying in place. The financing section has to say what is actually happening: the existing loan remains, the buyer takes title subject to it, and the balance is credited against the purchase price.
When: at the outset. Everything else references it.
2. The subject-to disclosure and acknowledgement
The seller's written confirmation that they understand the loan stays in their name, their credit remains tied to it, and they are relying on the buyer to make payments.
This is the single most important document in the file, and it is the one most often skipped because the conversation already happened verbally.
It protects the seller, which is exactly why it protects you. A seller who later says nobody told me the loan stayed in my name is a serious problem, and a signed acknowledgement is the difference between a misunderstanding and a dispute.
When: signed at or before contract execution. Never at closing.
3. The due-on-sale acknowledgement
Most mortgages contain a due-on-sale clause letting the lender call the balance when the property transfers. In practice lenders often don't while payments are current — but "often don't" is not "cannot."
This document records that both parties know the clause exists, know it can be invoked, and are proceeding anyway.
When: with the disclosure package.
Why it matters: if the note is ever called, the question is whether everyone understood the risk. Get it in writing.
4. The seller carry note, if there is one
When the seller carries a second for the difference between the existing balance and the purchase price, that note needs terms in writing: principal, rate, payment, term, balloon date if any, late provisions, and what happens on default.
The number one failure here is a note whose payment does not actually service against the property's income. Run the payment before you sign it, not after.
When: drafted the week terms are agreed. Not the week of closing.
5. The security instrument for that note
A note is a promise. The deed of trust or mortgage is what makes it enforceable against the property. A carry note with no recorded security instrument is an unsecured personal loan, which is not what the seller agreed to.
When: prepared with the note, recorded at closing.
6. Authorization to release information
The loan stays in the seller's name, which means the servicer will not talk to you. Not about the payoff, not about escrow shortages, not about whether the payment posted.
A signed authorization on the servicer's own form fixes it. Many servicers require their form specifically, so ask early.
When: signed at closing, submitted immediately after. This is the one most commonly forgotten, and you discover it the first month you need to confirm a payment.
7. Insurance restructured for the new arrangement
The seller's policy is written for an owner-occupant who now doesn't own it. Left alone, you have coverage that may not respond to a claim, and a lender who may notice the change.
This usually means a new policy naming the correct interests, with the lender's mortgagee clause intact.
When: bound before closing, effective the day of.
The pattern
Six of the seven should exist before the week of closing. The reason files die in the final fourteen days is almost always that several were left to that week, and one of them turns out to need a third party — a servicer form, an underwriter's sign-off, an attorney's review — that has its own timeline.
Draft early. The documents are not the hard part. The waiting is.
What we do with this
Every CLOSER file has the document set built from your written terms, routed for signature, and tracked against the closing date. Where the file needs an attorney — entity or trust work particularly — we make the introduction and coordinate around it. We don't form or file anything ourselves.
If you have a subject-to under contract and are not certain the set is complete, send it through the intake form. The call is free and we will tell you what is missing.