If you are early in the process, start with the guides. They set out the sequence of a Mexican transaction — offer, promise-to-purchase agreement, trust permit, notario review, signing and registration — and where costs and delays usually appear.
Once you have a specific property in mind, the FAQ answers the operational questions: what closing costs to budget, what predial actually costs each year, what tax the seller pays, and whether the building permits short-term rentals.
Keep the glossary open while you read contracts. Mexican deeds and condominium documents use terms with no exact English equivalent, and misreading one of them — ejido land in particular — is the most expensive mistake a foreign buyer can make.