Wilsonn Perez Reyes Jan 30, 2020:

It could be the initials of the person who typed the document.

Taña Dalglish Jan 29, 2020:

Still, as Juan said in another question, "probablemente las iniciales de alguien del Estado Civil. De ser así, ni le busques, no se traducen." Immaterial to the translation.

Daniela Negrete Martínez (asker) Jan 29, 2020:

Thank you, Taña, but no. It does not represent any of the names on the certificate, plus it's in lower case.

Taña Dalglish Jan 29, 2020:

Often times, "mlf" (among others) are merely initials of an official. Do the "MLF" represent any of the names such as those of the Chief or some official?