| •
| A filled-in visa application Form DS-156 |
 |
| •
| One recent photograph two inches square (50mm x 50mm) of each applicant, with the entire face visible. The picture should be taken before a light background and without head covering |
|
| • | A passport, valid for travel to the U.S. for at least six months longer than your intended visit |
|
| • | Establishment of the demonstration of nonimmigrant intent. You must prove that you will return to your home country |
|
| • | An official agreement between you and the petitioner detailing the terms and conditions of
| the services |  |
|
|
| • | An agreement between you and the O-1
visa holder that proves your professional relationship |
|
| • | Proof
of a previous professional relationship with the O-1 visa holder |
|
| • | Proof
that you are capable of assisting the O-1 visa holder |
