i am going to take my citizenship in june 2013 and i want to bring my family here(mother,father,sister)with a family reunion visa.

Hello, You may file for your parents' green cards or legal permanent residency status after you become a U.S. citizen and the current processing time is approximately one year if they come from abroad (Consular Processing). It would take an average of approximately ten years for your sister to immigrate to the U.S. based on your petition for her. This processing timeframe is an estimate which is subject to change depending on the workload of the U.S.C.I.S officers. Disclaimer: This information is of a general nature and is not, nor is it intended to be, legal advice. You should consult an attorney for advice regarding your individual situation.Doreen Emenike_________________________Law Offices of Doreen A. Emenike