hi
so, i need to extend my sister's I-94. I called my lawyer, he said they charge $1000 on top of $300 that immirgation charges. I am wondering how hard it actually is to fill out these papers, can I just do it myself? Because afterwards we will have to do a change of status for her, and that will be another $2000-$3000...I filed all paperwaork myself for my Greencard and got it in only 4 month, there was no problem at all. Maybe I can file extension, too? Is there a trick to it?
Has anyone does this before?

Thank you