If you need any further assistance I am a member of FIABCI/International Real Estate Federation. I can be reached via email@example.com.
This should make it easier to get a loan in the US.
Best of luck,
I would recommend contacting your local bank and having them set you up with a referring partner in the US. I would have to imagine that a system is in place to establish credit based on your current payment history in Ireland. Further, I would recommend renting for 6-12 months so that you get a lay of the land before you decide to set roots. Our real estate economy is such that if you buy immediately and do not like where you are living you will most likely lose money if you sold next year. If you need any further assistance then please do not hesitate to contact me.