To obtain an immigration benefit, you will have to file the particular USCIS form that best suits your need. But you need to concentrate on few things prior to filing the form and you need to do a lot of home work. USCIS forms can be downloaded from the USCIS website and almost all the forms are free. You may download the form that you require from the website but you will have to make sure that the form that you are downloading is the current version and not an outdated version. You can just download the required form and complete it on your computer and you may also choose to complete the form by hand but you can choose the former as that is much easier.
In both the cases, you will have to make sure that your entries are legible and neat and if the space provided is not enough, you may use additional sheets. Similarly, it is always better to start over with a new form if you make mistakes while completing the form, as the scanners that the USCIS use to read the forms will not read the information that has been highlighted or corrected using correction fluid. Incomplete forms will never be accepted and see to that you do not skip any part of the application and make sure that no fields are left blank.
The form must be signed and mailed with the right filing fee. However, before filing the form you need to make sure that you have answered all the questions and that you have affixed your signature. If you are filing more than one form at a time, you need to ensure that your name is entered in the same way on all the forms. USCIS might at times require additional supporting documents if the documents that you sent along with your petition are insufficient and in such circumstances, USCIS will send you a request for evidence and you must send the required supporting documents as soon as possible.
All the immigration forms come with detailed form instructions and it is mandatory to follow all the instructions. All the forms must not be mailed to the same USCIS service center and you will have to follow the instructions printed on the form instructions page and mail the form to the address that is listed on the form instructions page.