You know I-751 and N400 are two different things right?
You need I-751, because you have a conditional green card. You can not skip this. This is a MUST have
Whether or not to apply for N400 it is your DECISION. If you want to be a citizen and eligible you can apply for it.
Correct me if I'm wrong but when you submit AR-11 online it will ask for active case number. If you don't have active case before you move then updating the address is mo point
You can use this website to e-request missing notices from USCIS
https://egov.uscis.gov/e-request/displayNDNForm.do;jsessionid=541FCB2EA04C35F0FF31C155C1CB85F5?sroPageType=ndn&entryPoint=init
Wow, two years passed quickly. I was done with this beautiful website but now I'm back 😀. Just started assembling my package, hopefully send it out later today. Good luck all!