What is NOM-247? NOM-247 is being reinforced to protect the consumer first and foremost. In the past and maybe now there are fake publications about a property for sale. It is easy enough for just about anyone to publish a fake listing on the internet and manage to get a deposit from an innocent consumer. This law will help prevent this from happening by making it clear and illegal for anyone to publish without an actual listing contract being loaded in PROFECO (Mexico´s government version of the Better Business Bureau). A nice touch by the government and something that was way overdue.