Yes, they may affect his petition depending on the exact felony charge and if you have any minor children. You have an additional problem to address in that you entered "illegally" and therefore you may not be able to apply for your permanent residence here in the US; and you may need to apply at your home consulate. When you leave the US to apply, you are going to trigger a 10-year bar under section 212(a)(9) and you will need a waiver. You should consult with an experienced immigration attorney before your husband files anything for you.
Answered on Jul 13th, 2011 at 12:53 PM