[Q] What are some reasons for delay in I-526 petition adjudication?
There may be a Request For Additional Evidence (RFE) issued by the USCIS examiner in charge of I-526 petition. Responding to the RFE and getting a decision may take another 2~3 months. RFE may be very simple or complex. Sometimes, the RFEs raise valid issues; sometimes, USCIS examiner may not have understand the submitted information correctly; and sometimes, the USCIS examiner may have overlooked the documents already submitted. It all depends.