Adjustment of Status - I-485

Hello Houston filter
My Pd is Feb 16,2016 , and I just had my interview on Mar 21, 2017. My appointment is 9:45 Am at Houston, Tx, and My husband, kids , my lawyer and me were waiting until 11:30 to be called in. The office is really professional and nice person. She walked us to her office, and then she placed us under oath. I gave her my passport, ID, all working permits. And my lawyer gave her all my evidence documents include joint accounts, photos, ... BUT SHE SAID to my lawyer that " I don't need it because this petition was already approved". I was so happy when I heared that word from her. Then she asked if I had a second baby, and then she get a copy of my baby' hopistal document. She pointed at random picture and asked me question that we took picture at CoCaCoLa in Lasvegas? And we said No that is in Georgia, and she said she took similar picture in Lasvegas . After that she asked the YeS /No questions in I485 form. She didnt ask my husband any question. She said to us that everything was good and we were approved on spot. Then she walked us back to the waiting room. After 30 min, i recieved text message and email that my case is approved. Then 2 days later, i recieved that my card is mailed to me. My feeling is still supprised because I was ready for questions and documents but no questions asked. So happy and relieve, 2 year waiting for greencard is over. Thank you everyone for great experiences in this forum, Goodluck to you who will have interview soon.