I recently married an old friend who's husband dies in January 2021. She has a 16 year old daughter. My friend and I got married in April 2023. By virtue of the fact that I'm married to her mother, her daughter is now my 'step-daughter'. Correct? What document do I need to establish this relationship between the child me and can therefore pass on benefits that I am entitled to, like club membership benefits, etc. to this child? Will notarizing suffice? Do I need to register at the sub-registar? What will be the stamp fee? Lawyer fee? Thanks in advance for your valuable time.
