Hanna has been practicing as a notary and land deed official (PPAT) for more than 20 years. She has experience handling notary services (notary) and land deed officials (PPAT) in Jakarta, Tangerang, Bekasi, and Depok areas.

She obtained her law degree (S.H.) from Indonesian Christian University in 1987 and completed her studies at the University of Indonesia in the Notary Studies Law Specialization Program in 1996. She also continued her studies for Management Communication and obtained her (M.Si.) at the University of Indonesia in 1999 and her doctoral degree from the Theological College “IKAT” in 2015.