Disclaimer: I come from a culture where living in a joint family system is common. You might guess, yes, it's an Asian culture. Nothing wrong with living this way AFAIK, other than seeming weird to some folks. In my opinion it's not too bad if the house is big enough for a multi-generational family.
Anyways... I'm a USC and my wife has a CR1. We consider ourselves residents of place 'A'. We have a joint lease, joint taxes, joint bank account, joint health insurance at 'A'. I have a driver license for this state but she doesn't because she doesn't drive yet. I work remotely but my company has an office here and she's a stay at home wife.
Wife got pregnant and we wanted to have the baby at my parents house in a neighboring state (let's call it place 'B'). Since I can work remotely from anywhere in US, and the state of place 'A' lets me remain a domicile resident as long as I intend to return there, we essentially went and started living with parents at 'B', gave birth and it's been 3 months since then. I didn't realize I should change wife's address, because it was a temporary stay and we still have a lease/joint bank/insurance in place 'A' and go back there from time to time.
Question is, should I file a 6-month late AR-11 for wife? Or should I not file because we didn't 'officially' move to my parent's house in city B? We never intended to remain at B this long. AR-11 says you need to file even if its a temporary move, which I didn't realize initially... Should we not file it at all because we didn't intend to move to B? Or just be 'honest' and do a late filing? I'm now stressed about deportation, etc because they didn't use to pursue these issues, but now they might.
Additional info: During all this time, my parents and I closed on a house that I helped them purchase; it'll be in my parents name but we will rent from them. So next month, me, my wife + child and my parents are moving to a large permanent home, in the same state as 'A', but in a different city (let's call it place 'C'). At C, my wife and I will have everything together: Joint lease, utility bills, bank, health and car insurance, matching driver's licenses, etc. And we will never come back to 'B'.
We plan to file wife's I-751 at the end of Jan 2026.