Unfortunately I've had this scenario in several divorce cases in the last couple of years. Usually my clients have been Indian or from the Middle East but it could apply to anyone in the USA who hasn't yet established permanent resident status. What you need is a family lawyer working with an immigration lawyer to walk this legal tightrope. Yes, it's typical for the husband to be very controlling and for his family to be heavily involved. This can have a good ending for you and your child if you play your cards correctly.