My wife got a job with USCIS thru a top (Big 5) consulting firm, but Oath is pending from last 60 days and the requirement is US Citizen. Can we submit the Offer letter and will that help to expedite the case? We already took an infopass but that wasn't of much use. The lawyers and USCIS 2nd level officer also said the same that we have to wait at least 90 days. The offer was made today itself and we are still optimistic that we should get it soon. We have told them that Citizenship is in process.