Do I have to show a copy of my passport to buy a property in Mexico? Yes. It is a requirement by the public notary to begin the process. Personal information must match your passport not other identifications. A public notary must view the passport to confirm information is correct.
A prospect who refuses to send a copy of his/her passport is not ready to move forward with a purchase and is actually negotiating in bad faith. After all, this is a foreign country.