Financed property at auction: how chattel mortgage works and how to avoid losing your home

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“I fell three instalments behind on my mortgage and received a notice from the registry. Can I lose my apartment?” This is one of the most distressing questions we hear — and the honest answer is: yes, and faster than most people expect. But there are defences, and they depend on which stage you are in.

Most property financing in Brazil uses alienação fiduciária (a form of chattel mortgage), governed by Law 9.514/1997. Unlike the old mortgage — which required a slow lawsuit for the bank to recover the asset — this structure allows recovery out of court, directly at the registry. Faster for the creditor, more dangerous for whoever falls behind.

This article explains, step by step, what happens from the first missed payment to the auction, the deadlines, what you can do at each stage and the mistakes that cost people their homes.

What alienação fiduciária is (and why it changes everything)

Under this structure, the buyer transfers ownership of the property to the bank as security, keeping direct possession — living in it, using it, renovating it. Once the financing is paid off, ownership consolidates in the buyer’s name. Until then, the registered owner is the creditor.

The practical consequence is harsh: because the bank already owns the property, it does not need an enforcement lawsuit to take it back. It simply follows the procedure in article 26 of Law 9.514/1997, conducted entirely at the property registry. The correct reading is this: the clock runs against the debtor, and it runs at the registry, not at the courthouse.

The recovery stages: where the deadlines are

• 1) Default and collection: the arrears are notified. This is still the cheapest stage to solve — direct renegotiation with the bank is usually possible.
• 2) Notice through the registry: the creditor asks the property registry to serve you notice to pay. Service is personal (or by public notice if you cannot be located). This is where the formal clock starts.
• 3) 15-day cure period: you may pay the overdue instalments, interest, penalty, charges and procedure costs — and the contract returns to normal, as if nothing had happened.
• 4) Consolidation of ownership: if the default is not cured, the bank pays transfer tax and consolidates full ownership in its name.
• 5) Out-of-court auction: once consolidated, the creditor must auction the property within 30 days. There are two auctions: the first with a minimum bid equal to the contractual property value; the second, the debt plus charges.

Curing the default: the most important window

Curing the default is the right to pay what is overdue and restore the contract. It is the most effective defence — and the most wasted, because many people ignore the notice, thinking it is ordinary debt collection or that “there is still time”.

A common doubt: after consolidation, can you still pay? The Superior Court of Justice (STJ) has decisions allowing cure up to the signature of the auction deed in certain situations, and Law 13.465/2017 gave the debtor a right of first refusal to buy the property up to the date of the second auction, paying the debt and charges. In plain terms: a path may exist even after consolidation — but every passing day makes it costlier and narrower.

What if the property sells for less than the debt?

If neither auction attracts a sufficient bid, the debt is deemed extinguished and the creditor keeps the property (art. 27, §5, Law 9.514/1997). So, contrary to a common fear, the debtor does not remain liable for the shortfall in this structure — but loses the property and everything already paid.

And if it sells for more than the debt? Whatever remains, after debt, charges, taxes and expenses, must be returned to the debtor. In practice this reckoning is often done poorly — and reviewing it with a lawyer frequently recovers meaningful amounts.

When court action is warranted

The out-of-court route is not immune to review. There are concrete situations where courts can be called upon:

• Defective service: the debtor was not personally served when locatable, or the public notice was irregular — a flaw that may annul the procedure.
• Improper amounts charged for the cure (inflated charges, irregular compounding), preventing payment of the correct sum.
• Missed deadlines by the creditor, including for holding the auctions.
• No accounting or failure to return the surplus from the sale.
• Auction without proper publicity or at a grossly low price at the second sale, depending on circumstances.

A practical example: two outcomes

Mr. Almeida fell four instalments behind, received the notice and sought advice the same day. He obtained the exact cure amount, challenged two overcharged items and paid within the 15 days. He kept the property and the contract continued normally — at a far lower cost than he would have faced later.

Ms. Barbosa put the notice in a drawer, believing “the bank would never actually take the apartment”. By the time she sought help, ownership had been consolidated and the first auction scheduled. It was still possible to exercise the right of first refusal before the second auction, but the final cost was far higher — and losing everything came close. Same starting point, different outcomes: what changed was reaction time.

The most common (and costly) mistakes

• Ignoring the registry notice, mistaking it for ordinary collection.
• Letting the 15-day window lapse — the cheapest of them all.
• Paying without checking the calculation, accepting improper charges.
• Not updating your address with the creditor, which makes service by public notice easier.
• Giving up after consolidation, unaware of the right of first refusal until the second auction.
• Not claiming the surplus when the sale exceeds the debt.

Checklist: I received the notice — now what?

• Confirm the date of service — the 15-day period runs from it.
• Ask the creditor for the detailed breakdown of the cure amount.
• Check interest, penalty and charges — calculation errors are common.
• Assess your real capacity to pay and negotiate if needed.
• If the period has lapsed, check the stage: consolidated? auction scheduled?
• Gather the contract, receipts and the notice before the legal consultation.

Frequently asked questions

How many missed instalments before the bank can take the property?

There is no fixed number in the law — it depends on the contract, but the procedure usually starts after three or more overdue instalments. What really marks the start of the risk is not the number of instalments but the notice served through the property registry: from that point a 15-day cure period runs. Before that, direct renegotiation with the bank is usually simpler and cheaper.

What does “curing the default” mean and what is the deadline?

It means paying the overdue instalments with interest, penalty, charges and procedure costs, restoring the contract as if the default had not occurred. The deadline is 15 days from service of notice by the property registry (art. 26 of Law 9.514/1997). It is the most effective and cheapest defence — losing it makes any later solution far more expensive.

Can I still recover the property after the auction?

It becomes much harder, but it is not always the end. Law 13.465/2017 gives the debtor a right of first refusal to acquire the property up to the date of the second auction, paying the debt and charges. In addition, the STJ allows, in certain situations, cure up to the signature of the auction deed. And if the procedure was flawed — irregular service, improper charges, lack of publicity — court review is available.

If the property goes to auction, do I still owe the shortfall?

Under alienação fiduciária governed by Law 9.514/1997, no. If the property does not attract a sufficient bid at either auction, the debt is deemed extinguished and the creditor keeps the asset (art. 27, §5). You lose the property and what you have paid, but you do not remain liable for the balance. Conversely, if the sale exceeds the debt and charges, the surplus must be returned to you — and that return should be verified.

Is it worth consulting a lawyer before negotiating with the bank?

Yes, and the sooner the better. A lawyer checks the cure calculation (where errors are frequent), verifies whether service and deadlines were regular, assesses grounds for court review and guides negotiation based on the actual stage of the procedure. The difference between acting in the week of the notice and acting after the auction is often the difference between keeping and losing the property.

A mortgage in arrears is a problem with a clock. The sooner you understand which stage you are in, the more options exist — and the cheaper they are. At Falchet e Marques Sociedade de Advogados, a São Paulo firm on Avenida Paulista, we review the contract, check the figures and set out the available path at each stage, with clarity on risks and costs.

Talk to our team on WhatsApp: +55 11 95901-1854 — received a registry notice or fallen behind on instalments? Send us the contract and the notice so we can assess the deadlines.