Mexico objected to Article 10 of the Hague Service Convention, so post and process servers do not work. The Central Authority route, the formal requirements, and where the delay comes from.

A title search shows what is recorded, not whether the seller can sell or whether the land can be sold at all. The state registry, the encumbrance certificate, ejido land, the restricted zone and what a notary does not check.

A checklist written abroad asks the right questions of records Mexico does not keep in that form. Where a standard checklist breaks, what to replace each item with, and what one adapted to the country contains.

Corporate paperwork in Mexico is easy to produce and hard to check from abroad. These are the records that establish whether a counterparty is real, and how to read them.

Mexico holds its records differently, and a name alone establishes almost nothing. What a background check in Mexico can prove, what it cannot, and when consent is required.

Most firms advertising investigations in Mexico subcontract the work to someone you will never meet. What to ask before you instruct anyone, and what the law actually permits.