Can I fix his papers if we marry this year?

A U.S. citizen may sponsor a fiance for immigration benefits if she is old enough to become legally married in the place where the marriage is intended to take place. There are many other details that have an impact upon eligibility, however, and it would be wise for you and your fiance to consult with an immigration attorney who, after learning all of the relevant information, could advise about eligibilities, options and strategies to attain your goals, and who then could offer legal representation in the often complex application process.