My parents aren't on my residence permit, I should clarify. My mom has a job with a residence permit, and my dad is on a dependent's permit provided by her job (not mine).
However, my mom wants to retire soon and we did find out that my husband can sponsor them for residence permits IF they are over 60, have no one willing to look after them back in America, and we can prove a stable income. Interesting eh?
Thanks for moving this TLD.
I believe the answer to my question lies in the quoted post. My wife currently holds American citizenship, although she is considering applying for dual American-Korean as that became an option recently. She's experienced in accounts receivable [she threatens corporations for a living

], but she probably won't work, and once I get settled probably force her to finish her degree.
Current goal: trawling websites for jobs. Wish me luck!