Curious. I am not sure what your question is. Can you clarify? If you are asking could there be problems if you let the home go to foreclosure and move out of the country to purchase a home. Yes a lender can come after you for any deficancy between loan amount and foreclosure auction sale + lawyer fees. I would suggest trying to short sale the home before letting it go into foreclosure.
I would also advise you speak with a real estate attorney who could better advise you. Good luck to you.