ALLAN WERNICK: How to replace lost documents that prove you entered the U.S. legally

Q. I am the father of a child born abroad with a woman who is not my wife. I am a U.S. citizen. Can I bring my child to live with me in the United States?

N.M.

A. Maybe. U.S. immigration law recognizes a parent/child relationship when a child is born out of wedlock if either the parent had a relationship...