Marriage based green card. I was authorized to work, my wife is USC. We lived together since 2010. Until we were married last August and submitted the AOS package last November, we were filing tax as single. Our interview is set for Monday Feb 4th. Hopefully I get approval for the 2 years conditional card. My questions, from now on until I get permanent card, do we have to file as : Married filing jointly or Married filing separately? Please advise.