Usually yes. A Mexican notario público is a state-appointed public official who drafts and authenticates your escritura, calculates and withholds the taxes, and registers the sale — but he answers for the legality of the act, not for your interests. A real-estate attorney reviews, negotiates and represents you alone.
I run Selvadentro, so I am not the natural author of this page: an independent lawyer on the buyer's side is a cost, occasional friction and sometimes a delay for a developer. We would still rather you have one. The buyers who ask hard questions early are the ones who never become a problem later, and a project that cannot survive independent review deserves to lose the sale.
What does a notario público actually do?
Start by deleting the American reference. A US notary public witnesses signatures for a few dollars. A Mexican notario público is a law graduate who passed a state examination for a limited, numbered office and was appointed by the state; he holds fe pública, meaning the instruments he authorizes carry a legal presumption of validity. He is closer to a judge of documents than to a service provider.
In a purchase, that office does a specific set of things:
- Verifies the identity and legal capacity of both parties, including powers of attorney.
- Pulls the property's registry record and a certificado de libertad de gravamen — the lien-free certificate — and confirms that predial and water charges are current.
- Drafts the escritura, reads it to the parties and authenticates it.
- Calculates and withholds the taxes: the buyer's acquisition tax, and the seller's ISR on the gain.
- Constitutes the fideicomiso with the bank when the buyer is a foreigner in the coastal zone.
- Registers the escritura at the Registro Público de la Propiedad.
That is a strong, protective function, and it is why Mexican closings are hard to fake. But read the list again for what is missing. The notario does not negotiate your price or your penalties, does not audit the developer's permits for your benefit, does not tell you whether the condominium rules will restrict what you want to build, and will not advise you to walk away. He guarantees the act; you are responsible for the deal.
What does a real-estate attorney do that a notario doesn't?
Everything upstream of the signature and everything adversarial. Due diligence beyond the title itself: land use and permits, the condominium regime and its statutes, the developer's corporate standing, whether the land has ejido origins that were never converted to full private title. Contract work: reading the promise-to-purchase, negotiating delivery dates, penalties, price-adjustment clauses and what happens if the developer defaults. Structuring: who should hold title, who the substitute beneficiaries in a trust should be, how the purchase interacts with your estate. And if something goes wrong, someone who is already yours and already knows the file.
Who does what?
| # | Task | The notario | Your attorney | You |
|---|---|---|---|---|
| 1 | Pull the registry record and lien certificate | Yes — required to close | Reads and interprets it for you | Ask for the folio real early |
| 2 | Verify permits and land use | Not on your behalf | Yes | Request the permit file |
| 3 | Check ejido origin or dominio pleno | Confirms the registered chain of title | Investigates the history and the risk | No registration, no purchase |
| 4 | Draft and negotiate the promise contract | May draft it; does not negotiate for you | Negotiates on your side | Sign nothing you have not read |
| 5 | Review condominium regime and HOA rules | Records them in the deed | Explains what they cost and restrict | Read the building rules |
| 6 | Calculate and withhold taxes | Yes, by law | Plans around them with your accountant | Keep every receipt |
| 7 | Draft, read and authenticate the escritura | Yes — his core act | Reviews the draft before signing | Ask for the draft days in advance |
| 8 | Register the escritura | Yes | Confirms it actually happened | Ask for the registered copy |
| 9 | Set up the fideicomiso | Yes, with the trustee bank | Advises on beneficiaries and succession | Name substitute beneficiaries |
| 10 | Represent you in a dispute | No — he is neutral by design | Yes | Keep the paper trail |
Row 10 is the whole argument in one line. The notario's neutrality is exactly what makes his instruments trustworthy, and exactly why it cannot double as advocacy.
Can you choose your own notario?
Often, and it is worth asking. In Mexico the buyer customarily pays closing costs, and the party paying customarily chooses the notaría. In new developments, though, the developer usually designates a project notario, because that office already holds the master deed, the condominium regime and the permit file — which genuinely makes closings faster and cheaper for everyone.
That is normal, not sinister. Two things make it safe: you can ask whether your own notario is acceptable, and you can always have your own attorney review the draft escritura and the contract before you sign, whoever holds the pen. If a seller refuses both — your notario and your independent review — you have learned everything you need to know without spending a peso.
When is independent review non-negotiable?
- Pre-construction or off-plan purchases, where you are paying for something that does not exist yet and title comes later.
- Developer financing, where instalments run for years before the escritura — the clauses on default, delay and transfer are the entire protection.
- Any hint of ejido origin, or a seller who talks about "rights" instead of registered title.
- Buying through a Mexican company, or a trust with several beneficiaries, especially where heirs, partners or a marriage regime are involved.
- Signing from abroad by power of attorney, which needs to be drafted narrowly and verified by someone on your side.
- A contract in Spanish you cannot read. A translation is not a review, and a friendly summary from the seller is not either.
Cost is rarely the obstacle people fear. Notary fees typically run about 0.5–1% of the price inside the 6–8% closing bundle common in the Riviera Maya; an attorney's fee is quoted per matter and is small measured against the price of land. Pay it before signing, not after — and pay only into the accounts a contract names.
Where does Selvadentro stand?
We hand documents over. Ask for the registry identification of your lot, the permit file, the condominium regime and the draft contract, and give all of it to a notario or attorney of your own choosing. Our state and municipal compliance was publicly confirmed in the September 2025 SEDETUS review — 26 developments were listed on September 11, and on September 16 an updated bulletin removed 14 of them, Selvadentro among them, after they proved compliance. The full account is on our legal and permits page, and the method for checking any developer this way is in how to verify a Tulum development.
Hire the notario the law requires and the lawyer nobody requires. If you want the rest of the due-diligence sequence in order, is it safe to buy property in Tulum walks through it step by step.