My fiancee and I will be married in Moscow in December. Then I will file k-3 to bring her to USA. She has a 13 year old daughter. The daughter's father had no contact with the child for over 2 years until I came into the mother's life. Now the father, a well-known University professor, has re-entered the daughter's life. He has convinced the daughter to remain in Russia. If the daughter remains in Moscow with her maternal grandmother when my fiancee comes to America, will my future wife lose custody of her daughter because of our marriage? We are hoping that within a year the daughter will also wish to join us in America.