USCIS freqeuntly transfers files to help increase processing times. You cannot file for your mother to receive a visa to enter the United States while waiting for the immigrant visa petition to be processed. A lawyer will not necessarily make the process faster. An attorney can help make the process faster may limiting the number of requests for additional documents. The attorney can also help you prepare for the next stage so you can start the visa application process imediately after the case is sent to the National Visa Center. I would encourage you to speak to an attorney to assess how much longer the process may take and to provide you with information about the next stage. You can read more about family immigration at http://myattorneyusa.com/family-immigration.
Answered on May 27th, 2016 at 3:10 PM