When should I file my Form i-864?

He will file the I864 when your priority date becomes current and file I485.

On i400 form, what is best option to choose on part 1, question 1

Please indicate the question you are referring to for assistance or refer to the N400 instructions for guidance.

Will USCIS accept an unsigned lease even though both spouse names are on it?

No this is not a basis for denial of the I485, particularly if you have sufficient evidence of your good faith marriage.

What documents necessary to submit to USCIS with my i360 VAWA application?

Along with evidence of your abuse during the marriage, you will need to establish that you lived together with your spouse in good faith marriage....

Can you get a signed copy of the I-864 Affidavit of Support through a Subpoena by my divorce attorney?

Your lawyer could file for a FOIA request to obtain a copy of your immigration file.

You do not need to list this individual as an immediate relative.

Yes, all form should be sent and mailed together with the correct filing fees.

I want how long time take nvc process

Since you are concerned, it is best to contact the National Visa Center directly about your case status.

Am i gonna need an affidavit of support?

Yes, if you are filing the I 485 you will need to submit an updated affidavit of support.

Sponsoring my sister for US visit.

Your sister may apply for the visitor visa on her own and yes, she will need to establish her own financial stability in her home country. It is...