Your question requires an attorney consultation. It is not a simple question that can be answered on this type of forum. There are many factors that would need to be considered and evaluated. Your father's deportation will complicate his petition, but there may be waivers available to him. Your mother may or may not have to go through consular processing instead of adjusting in the U.S. I strongly suggest that you contact an experienced immigration attorney for a face-to-face consultation and give him/her all of the facts surrounding your parents' situations. (S)he would then be in a better position to analyze their cases, advise you of their options and, if possible, make sure that the necessary paperwork and documentation is presented so as not to delay the process.
Answered on Mar 06th, 2014 at 5:07 PM