There is a list of documents that you have to submit so you can successfully file your application.
1. The i-485 application form for the adjustment of status
2. I-765 form for Employment authorization
3. Form I-131 for advance parole (used to return to the US),
4. A medical report provided by your doctor
5. The form I-944 public charge rule (proving that you will not be using any government financial support and can bear expenses autonomously).
Besides, you need to submit a copy of your -140. As in any visa application process, you can request premium processing by paying an additional fee, speeding up the process, and saving your valuable time. The other two forms needed are I-864, which shows what family members will be financially supported by you, and a supplement J, which is a confirmation of a job offer if you changed job after filing i485.
Besides the forms needed for this application process, it is mandatory to submit personal documents such as a birth certificate that has to be issued by a relevant authority, translated into English, and notarized. If your birth certificate cannot be issued in exceptional cases, you can submit a church certificate, school, medical records, proof of unavailability, or non-existence. However, these cases are quite specific, and you will have to explain why you cannot provide the required certificate. Together with your birth certificate, you have to file the most recent valid passport copies. Blank pages should also be included. In case your old passport has a US visa stamp or used it to enter the US, you have to provide that copy.
Furthermore, you have to submit all prior i-94 copies, i-797 approvals, I-20, and EAD card. Prepare your most recent driver’s license if you have it, six photographs compliant with passport standards, health insurance, and IRS Tax transcripts. For your family members, you are required to submit all previously mentioned personal documents and a marriage certificate, child relationship proof, which can be a childbirth certificate or a child passport if any of these documents contain parents’ names in them. Some of the documents are not mandatory but are recommended in most cases, such as a credit report or bank statements, FBI and State Police clearance reports.
After you prepare all the documents and evidence, complete, sign the form, and pay the filing fee, you can submit your i-485 form to the USCIS. Once your application is received, USCIS will issue a receipt notice, Biometric services notice, if applicable, and notice to appear for an interview if required.
The processing of this application usually takes six months.