Path A: the letter of intent and the complete Article 4.012 process, step by step

This is the only path where you take the first step. Under Article 4.012 of the Municipal Code (Act 107-2020, as amended by Acts 114-2024 and 97-2026), a citizen notifies the municipality of the intention to acquire a property declared a public nuisance, deposits the money, signs a contract, and the municipality expropriates the property to transfer the title.¹ The letter of intent opens that process, but it is only the first step of several, and whoever sends it without understanding what comes next is committing without knowing to what. This guide walks the complete path, in order, with every deadline and every dollar cited to the law.

If you do not yet know what a public nuisance is or how it gets declared, start with the declaration process guide; and if you want to compare this path with the other two before committing, there is the three-path comparison.

Before starting: three things you should know

First: the property must be declared and inventoried. Path A does not apply to any abandoned house, but to the properties in the Inventory of Properties Declared a Public Nuisance, the inventory the law requires the municipality to prepare⁴ when it is not going to expropriate for public utility. That inventory includes each property's location, registry description, cadastre, owner, and appraised value; it is updated every quarter and is public⁵ at City Hall and on the municipality's digital platform or social network. If the property you want is not declared, your letter has nothing to operate on: the declaration process would have to finish first. On estorbos.com/explorar you can see declared properties by municipality and their stage.

Second: the municipality decides. The law says a property in the inventory may be expropriated and transferred to whoever is willing to rehabilitate, reconstruct, restore, demolish, or build anew.⁶ It is a power, not an obligation: your letter activates the request, but it does not force the municipality to expropriate. That word, may, is what separates your right to ask from the municipality's duty to grant.

Third: there are two ways for the municipality to acquire. It can do so by purchase or by forced expropriation,⁷ paying the owner fair value where it applies. A purchase presupposes a locatable and willing owner; expropriation is the route when there is none, and it is the one the law details step by step. The rest of this guide follows that route.

Step 1: the letter of intent

Everything starts with a single sentence of the law: the applicant-acquirer shall notify the municipality of the intention to acquire the property in question.⁸ That is all Article 4.012(a) provides about the form: no official form, no established medium, no uniform registry. That the law says so little is an advantage (nobody can reject you for using the wrong format) and a risk (nothing protects you if you keep no record).

With the 2023-2026 wave of municipal regulations, some municipalities did regulate this step: Arecibo's regulation (Ordinance 29, Series 2023-2024) devotes an article to the intention to acquire,² and Isabela's (Ordinance 6, Series 2024-2025) establishes its own acquisition procedure.³ Check your municipality's current regulation; if it defined its own procedure, follow it, because the local regulation is what the mayor's office will apply in practice.

Although the law does not demand specific content, practice has its logic. A useful letter identifies three things without ambiguity:

• The property: exact physical address, CRIM cadastre number and, if you have it, the registry description from the municipal inventory. A poorly identified property strips the letter of its practical value.
• You: full name, identification, and contact information where the municipality can notify you of the next steps.
• Your intention: the clear statement that you are giving notice, under Article 4.012, of your intention to acquire that property from the inventory of declared nuisances.

Why proof matters. The law gives you the right but not the tool: with no record of your notice, if a dispute comes later you cannot prove what you notified, when, or that you were first. For that, estorbos.com generates a formal notice based on Article 4.012, with the property data pre-filled from the inventory and CRIM records, and a timestamp with a cryptographic hash proving when it was generated and that it was not altered. Using it is simple: open the declared property's page on /explorar, press Express Letter of Intent, download the letter, complete it by hand, and take two signed copies to City Hall asking that both be stamped as received. Keep yours; the digital record stays on estorbos.com as backup. Estorbos.com is not part of the legal process: it represents no one, handles no funds, and has no interest in any property.

Step 2: the appraisal, your deposit, and the contract

This is the step where the money comes in. The property is valued through an appraisal report: the law requires municipalities to use professionally licensed real estate appraisers,⁹ with a distinct reviewing appraiser approving the report or, failing that, the CRIM's review. That number is not negotiable with you: it is the starting point the law uses to calculate your deposit.

Your obligation as applicant has two parts. One, the deposit: you deliver to the municipality the appraised value plus ten percent (10%)¹⁰ earmarked for the costs and fees of the proceeding, which the law itemizes: title study, reimbursing the municipality for the appraisal, service of process, notarial expenses, and recording the title at the Property Registry. Two, the formalization: that money is delivered prior to signing a contract with the municipality establishing your commitment to acquire the property to be expropriated.¹¹ That contract is your legal bond with the process: from there on, you are formally the applicant-acquirer in the case file.

Your money in Path A, complete:

Step 3: the expropriation lawsuit

With your deposit and the contract in place, the municipality files the expropriation complaint under Rule 58 of Civil Procedure. You do not litigate: the lawsuit is the municipality's. But its three features are worth understanding, because your money is inside:

• Title passes quickly to the municipality. Upon filing the Expropriation Petition with the Declaration for Acquisition and Material Delivery, absolute title passes to the municipality within five (5) jurisdictional days.¹⁴ The property stops belonging to the original owner long before the lawsuit ends; what remains to litigate is the price, not the title.
• The municipality does not advance its own money. The complaint is filed without depositing money at filing, because the property is a declared nuisance;¹⁵ the obligation to deposit arises when the defendant appears. On this path, that money came from your deposit, not the municipal budget.
• The original owner can fight the price, but uphill. The owner can appear and object to the compensation; if they do, the burden of proof falls on the property's owner¹⁶ to show they deserve more than what was deposited. If the court agrees and raises the figure, the difference is on you.

All of this has a clock: from the answer to the complaint or the entry of default until the resolution on the merits, the lawsuit cannot exceed one (1) year.¹⁷ That cap is your main protection against the scenario of a deposit frozen indefinitely.

Step 4: the title in your name

Once judgment is entered, the municipality transfers the title of the property to you.¹⁸ There is a single condition, and it is absolute: there is no transfer while any debt from the process remains.¹⁹ If a balance remains unpaid, the municipality can also pursue the relevant collection actions and record an attachment against your assets.²⁰ With everything paid, the title is yours, it is recorded at the Property Registry, and the deposited sums that went unused return to your pocket.

After buying: the redemption year

Path A does not end with the deed. Article 4.014 provides that if during the year counted from the transfer you do not carry out the rehabilitation, reconstruction, restoration, or demolition of the property, the municipality can exercise the conventional redemption action and recover it²² under the Civil Code. The logic is consistent with the whole system: the law transferred the property to you to eliminate a nuisance, not so it could remain one with a new owner. Budget the work from the start, as part of the real cost of the purchase, and keep evidence of every advance in case you need to show compliance.

Path A's deadlines, together

The concrete risks

• Quitting is expensive. If you desist with the case filed, you pay all of it: just compensation, interest, costs, penalties, sanctions, litigation expenses, and attorney fees.²¹ Same if the lawsuit collapses for your lack of cooperation or funds. Send the letter when you are sure, not to explore options.
• The bill can grow. Your minimum is the appraisal plus 10%; the maximum is set by the court. If the final compensation exceeds the appraisal, the difference is yours, and there is no way to know it with certainty in advance.
• The decision belongs to the municipality. It can choose not to expropriate, or prefer another path (the 4.012A summary track or its own auction model). Your dated letter positions you, but guarantees nothing.
• There may be no answer. The law sets no term for the municipality to answer your notice and does not oblige it to start the expropriation. Follow up in writing, keep every receipt, check whether your municipality's regulation sets internal deadlines for this step, and if the lane does not move, weigh the other paths.

Where this path fits against the others

Path A is for someone with the funds who wants a specific inventory property in their name. If your situation is different, look at the alternatives: the summary procedure of Article 4.012A, where the municipality initiates and there is a priority for people with limited access to the housing market, or the expropriation and auction model, where the municipality expropriates first and you buy at public auction. The full view is in how to acquire a property declared a public nuisance and the comparison in the three paths compared.