Article 53

Visitors, except those for humanitarian reasons and those who are linked with a Mexican or foreigner regularly residing in Mexico, may not change status and have to leave the country at the end of the authorized period of stay.

Mexican Migratory Processing and Consulting Services

Permanent Residence change by Family Ties.
Temporary Residency change by Family Ties.
Change to visitor by humanitarian reasons.
Change to visitor by humanitarian reasons to temporary resident.
Change to visitor by humanitarian reasons to permanent resident.