COS Fee from H1 to F1

[h1behelp]

Hi,
What's the COS fee from H1 to F1?
What are the forms and supporting documents I need to send to USCIS?

[kabkaba]

Search for I-539 for fees and required documents.
Basic requirement is to get admitted to a SEVIS university and get an I-20 from them and to prove that you have been in H1 status.

[h1behelp]

Search for I-539 for fees and required documents.
Basic requirement is to get admitted to a SEVIS university and get an I-20 from them and to prove that you have been in H1 status.

Thank you so much for your answer and help.

Do I require attorney's assistant if it's very technical?