Note: Face-to-face is not needed if the applicant can show that they have registered with the Mexican Tax Administration (SAT).
Private Organizations use SIEM which is the Mexico business information system and is the legal registration: https://www.siem.gob.mx/siem/portal/consultas/ligas2017.asp?Tem=1
Business entities (sole proprietorship) can use QTIS from the Mexican Tax Administration (SAT) to establish legal existence and no face to face is needed. SAT performs a Face to Face when creating the tax record for the entity. Be sure to add a note in AVS stating face to face was completed by the Mexican Tax Administration (SAT) if QTIS is used.