Do I check "Yes" or "No" on I-130, Part D, Question 2 ?

Check "Yes" because you did file a petition for someone even though you no longer have a relationship with that person.

Do I have to be employed to apply for a spouse visa for husband? Is it mandatory with i-864?

You can file a visa petition for your husband even if you are unemployed. However, because you are the petitioner, you must submit an I-864 as the...

Is getting the green card is only a matter of formality from now and can the I-485 approval can take more than 7 month?

The I-485 is NOT "only a matter of formality" just because the I-140 has been approved. A determination will be made based on your eligibility to...

Can someone with a 2 year green card (husband that wife sponsored) bring/petition his family (brothers/sisters) to the United St

No. A green card holder (conditional or permanent) cannot petition for his/her siblings or parents. Only US citizens can do so.

How can I apply for AOS without waiting for the priority date to become current?

You need to wait until your priority date becomes current. Moreover, you need to remain in a valid status right up to the time of adjustment.

How can we get around having a missing document such as a marriage certificate?

Why not contact a lawyer in England for assistance? You can also submit secondary evidence, such as, affidavits from people who know of your...

Can I ask the judge for a permission to apply for my green card from here? Is there a waiver that applies to me? Options?

From these facts, it is most unlikely that you can seek adjustment in the Immigration Court on the basis of your father's petition because you are...

Nothing to worry about. A cover letter is helpful but is not a requirement.

It would be in your best interest to retain an experienced immigration attorney to assist you. The application involves a lot more than correctly...

What visa she needs to apply? or how can a request a visa for her?

You did not state when you became a permanent resident and your husband became a US citizen. You can file to become a US citizen in 3 years instead...