I dont charge for that because i am not a lawyer yet. Once i become a lawyer next year after i pass the bar, hmm.......... afno nepali daju bhai didi bahini haru ko lagi ....jati bhaye pani bhai halchhaa ni hoinaaa......? LETS GET SERIOUS: The cost of the process would be: Form I-485- submission fee to USCIS $325 Sevis registration (in your school) $100 Support letter and Evidences: $00.00 Contact me and we will discuss YOU MUST FILE CHANGE OF STATUS BEFORE THE VISA EXPIRY.