Dealing with the Baltimore FO has been quite challenging. We filed our application in February and had our interview on May 23rd. We had requested a combo interview when we applied, but the officer seemed unaware of this request. He said he would transfer the case but ended up conducting a combo interview (though he spent more time talking about other matters than the actual interview). After the interview, he mentioned that once the ROC case was transferred to his office, he would approve it, which could take about a week. The ROC was transferred the next day, but the case went cold for another three months. We reached out to our congressman, but that didn’t help much. Eventually, we contacted the White House, and someone there got in touch with USCIS. After three months, the case was approved, and about three weeks later, we completed the oath ceremony. We’re relieved that it’s finally done. Hopefully, things will move more quickly for others. I’ve heard that if it’s just an N-400 application, it can be processed faster, and if you’re fortunate to have an early morning interview, you might even get the same-day oath. Good luck!