"Little Women" by Louisa May Alcott
Absolutely, if you are an adult .
Technically you can't adopt him because he is an adult. You can take him into you home though.
You can go ahead and adopt- immigration status is not something that would prevent the adoption. If you want to adopt merely to give the nephew legal status- then no, the adoption would do NOTHING. (the cutoff age for giving immigration status is 16).
Amos Bronson Alcott died in the year of 1888. He was 88 years old, and sick and bedridden at the end of his life.
You can't adopt an adult. And his child is not an orphan, so you can't adopt him either. You can marry the man and then adopt his son.
Yes a 19 year old can adopt. Once you reach 18 you are considered a legal adult.
No, most places require you to be at least 21 to be considered to adopt someone.