I am a 47 year old U.S. citizen engaged to marry a 61 year old Australian citizen. We would like to marry as soon as possible. My fiance currently resides in the U.S. when he is not working in Australia--he returns to the U.S. every 6 weeks to stay for 4 weeks, then returns to work in Australia. He will retire in about 6 months, and will not be seeking employment in the U.S. What is the best and hopefully quickest route to our marrying? Do we need to look at U.S. citizenship for him, or is it legal/workable for him to continue to reside permanently in the U.S. as my spouse while he is an Australian citizen? Do we need to apply for a fiance visa in order to marry? Is there a better visa to use in our case? How long will the process take? Do we need a visa or other document to just get married in the U.S. (apart from the issue of citizenship)? Are there problems he will face re-entering the U.S., coming home from work? He has no criminal record, is financially secure. Thank you for your help!!!!!!