Conducting due diligence is a key aspect of any transaction, international or otherwise. Attorneys working on transactions conducted in Mexico or that involve Mexican entities ought to be aware of registration and certification requirements that are unique to Mexico and that can affect the good standing and validity of Mexican contracts and companies.

First, unlike the United States, many types of documents are required to be notarized in Mexico. For example, the incorporation of every company, the buying and selling of all types of real estate, the establishment of deeds and wills, the creation of mortgages all require notarization. Corporate formalities such as amending governing documents, appointing and removing directors, or merger transactions also require certification before a notary public.