Many years ago in Ukraine, my husband had a girlfriend who became pregnant. Paternity wasn't established and when the baby was about 6 months old the girlfriend left my husband and took the baby with her. shortly after that she ended up in jail and the baby was put in an orphanage and adopted. Since my husband wasn't the legal father, he had no idea what was happening. He'd tried to find his daughter but couldn't get any information since he wasn't the legal father. When he came to the US on a K1, he put that he had no children because he took the question to mean legal children and at the time had not had contact or any info regarding his daughter for many years. Well, this year, after hiring a private detective, he's found his daughter and the adoptive mom allows them to talk on the phone. Now we're filing the N400 and are wondering what to put when it asks about children. Obviously she's not his legal child but she is his bio child and if anything happened to her adoptive mom who's quite older and also lives in a city in Ukraine that is being bombed, he would definitely want to get custody of his daughter somehow, either through paternity being established or adoption. Or even when she's over 18 if possible it would be nice to have an opportunity to bring her to the states.
any suggestions on how to handle this on the N400? Should he still mark that he has no children but write a statement just in case later on it comes up and he doesn't want to look like he was being dishonest on his N400 application?