Its been 123 days after we had out interview for I-485 and its still actively being reviewed. What should I do?

It is not unusual for an I-485 case to remain under review for several months after the interview. USCIS may still be completing background checks or reviewing documents before making a final decision. At 123 days, many applicants simply continue waiting, but you can check your case status online and ensure USCIS has not requested additional evidence. If the case remains pending for an extended period beyond normal processing times, you may submit a case inquiry through USCIS or ask your attorney to follow up.