Looking for a US notary in Zihua now

An illegal notary is like no notary at all. Simple. A transaction requiring a notary would be null and void. Documents useless, worthless. KNOWINGLY using an illegal notary would of course be a violation of the law itself, so the other party could easily sue and win for attempted fraud or fraudulent representation, for example.

Let's suppose a real estate transaction has occurred. A house is sold. A new mortgage is attached to the house. The seller has received a significant lump sum and has used that as the down payment for a bigger home with a mortgage of its own. A year later, it is discovered that the buyer used a fraudulent notary from Zihuatanejo. What would happen?

If the terms of the agreement aren't met that require notarized documents, then the documents are invalidated, the sale becomes null and void, and lawyers make a lot of money cleaning up the mess.