You appear eligible for a waiver of the 10-year inadmissibility. If you can show that your father suffers an "extreme hardship" due to his separation from you, the waiver can be granted. Please understand that the law gives you the right to apply for this waiver, not the right to receive it: the Department of Homeland Security has a complete discretion in these matters, and, if the DHS decides not to grant you the waiver, the decision cannot be appealed to any court. As the result, your chances of getting the waiver depend heavily on the skill of the attorney preparing the application, and his or her experience in this kind of cases. You should not rely on a notarial or an"immigration consultant", or on a general practitioner. Opt instead for an immigration attorney. American Immigration Lawyers Association has chapters in all metropolitan areas and will give you a referral.
Answered on Sep 27th, 2012 at 2:54 PM