How can I bring my dad while holding green card

There is unfortunately no faster way of which we are aware that you can bring your father from Afghanistan on an immigrant visa until you become a US citizen. Other methods of immigration would take just as long or longer. To see whether your father could qualify for any type of nonimmigrant visa other than a visiting visa, you could possibly take a copy of his detailed CV to an immigration lawyer if you believe that there is a possibility based on his education and/or working experience. Due to the limitations of the Lawyers.com Forums, Alan Lee, Esq.'s (the "Firm") participation in responding to questions posted herein does not constitute legal advice, nor legal representation of the person or entity posting a question. No Attorney/Client relationship is or shall be construed to be created hereby. The information provided herein by the Firm is general, and requires that the poster obtain specific legal advice from an attorney. The poster shall not rely upon the information provided herein as legal advice nor as the basis for making any decisions of legal consequence.