US Immigration from Pakistan

Hi
My parents have immigration interview at US embassy soon and want to make sure they have all the required documents with them. What documents did they take with them. Can I have the list of documents. Also I petitioned them but my sister is the sponsor and she moved to different state. Does she have to notify Uscis. Did you provide copies of your birth certificate and do they have to be certified or just the copies are ok. What do they ask in the interview. What kind of tax documents should we provide. Any kind of help will be really appreciated. I don t want to get delayed coz of the documents.

Hi. My sponsor wears a head scarf to cover her hair for religious purpose. Where while submitting i130 can we include her signed statement that the i130 requires for the people uploading the picture with their head covered?

Hi, After 7 weeks, I got an email saying my expedite request will be sent to the US embassy in Pakistan for review. We are already DQ d. How long before they make a decision and afterwards, how long before interview is scheduled? Any information is appreciated.

Hi guys, my wife has a specific name that she uses in all her official documents, but people call her or refer to her by some names called in love, and she uses one of those names as her email ID as well & on her social media accounts too (but they aren't mentioned in the official documents). Should we mention those names too? Or will the official name only will do?

My current postal address is different from the postal address I have on my marriage certificate because it (Marriage certificate one) is fetched from the postal address (the house that i changed 10 years ago) stated on my National ID card back, so my question is that

Is it okay to mention a different postal address on the i130 & i130a from what is mentioned on the marriage certificate? Because my marriage certificate states my old home's address.