No need for your wife to sign as she lives outside the US. Our I-130A was also not signed. For extra peace of mind, we added a note in the Additional Information section saying it was not signed by the beneficiary as she resides overseas.
If you have less than 5 years as LPR, provide the info from the "Resident Since" date on your green card. Any address/work/travel history before that date is irrelevant for naturalization.
That was the error in my case. My profile was linked to the DS-160 from my B1/B2 case, and there was no way for me to edit it to use my IR1 DS-260 instead. The support staff fixed it for me.
Cross the border with the visa. CBP officer will stamp the visa with the entry date, not GC number. The officer may forget to stamp, so check that your passport has the entry stamp before you leave the CBP office.
*** Moved from What Visa Do I Need to AOS from Work/Student/Tourist Visas forum ***
Need to submit I-130 & I-485 for your father. The I-485 will be denied without an I-130.
No option for petitioning a nephew, no matter the age of your nephew.
The only red flag is that you are now out of status, with no proof of authorized stay. You should have filed for AOS as soon as you got your marriage certificate. There is no 90-day rule for USCIS. File your I-485 ASAP.
Did the father not live in the US for at least 5 years? If the father actually had enough years of living in the US, the child could actually be a US citizen as well, and not need an IR2 visa at all.
Was it the father who filed the I-130 petition for the child?
Also need to submit a copy of your parents' marriage certificate. Other documents may also be required. Check page 8 of the form instructions here -- https://www.uscis.gov/sites/default/files/document/forms/i-130instr.pdf
Maybe.
At my visa interview, the CO asked for my petitioner's divorce decree, and he was fine with the print-out I presented. Then again, maybe he just didn't notice because it was a color print-out on legal size paper.