I need an advise please.
My half-brother's last name was changed in 1995 under his biological father's last name. He was born under my father's surname until we found out that he's not my father's biological son but actually my now-stepfather's.
He has been using this last name since then but just found out from NSO last week that his last name is still under the old surname.
Now, we thought we just needed to endorse it to the main office but he had been advised that it will need to filed to Court because of some mismatch of dates, as my mother was divorced from my father in 1989 and my brother was born in 1986. They apparently have to also look into her marriage to my step-dad as they would like to see if there were any "impedements", which we don't exactly know what it means.
Can you please shed a light to this rather confusing information?
Thank you so much.