Hope my this email finds you in best of your health. Ameen, Please help me to find the answer of my emerging question as I have been travelling to USA on B1/B2 Visa from Pakistan. My sister is in USA ans she has Green Card and her husband has Passport of USA. Can you please inform me that Is it possible for my sister to file on my behalf my I-130 Immigration while I am in USA with my wife. Or can you please explain me the procedure for the above request , please i need your help in this regard as I like USA very much and want to pass rest of my life with my loving wife there. Please reply me soon. I will appriciate your assistance in this regard. Hope to have your kindest and informative reply soon. I want to proceed my case myself as the Lawyers are demanding much amount.