pretty simple
539 to change status from h1 to h4
1) filled in 539 form(carefully fill in details of your address, i had some sleepless nights about that thinking it maybe lost in mail or gone to a wrong address..
2) photocopy of my latest i94(front&back)
3) photocopy of my h1 approval(front&back)
4) photocopy of my p.p(the 1st and last pages and visa stamp)
5) photocopy of my last 2 paystubs
6) photocopy of my husbands h1 approval(front&back)
7) photocopy of his p.p
8) photocopy of his 3 paystubs
9) photocopy of our marriage certificate
10) fees of 140$ as money order(but some say pay as a personal check, becos the personal check has a stamp of the EAC#, just in case if the recpt notice is misplaced, u can track with that #)
pretty simple...