Can an unemployed US citizen sponsor his wife for green card?

Yes, your husband can still file for you. You will need a financial joint sponsor.

How much does it cost for a lawyer to write a rebuttal?

We cannot answer such questions or quote fees here. But really the price would depend on the lawyer's experience and your particular fact situation.

Adjustment of Status I -485

First, if you submitted the I-485, you are dealing with USCIS, not NVC. Status must be updated as your spouse now is an immediate relative. ...

What do I need to do after responding to an RFE?

At this point you just need to patiently wait

On Nebraska Service Centre they're supposed to process an initial I 765 in 3 weeks for asylum pending.

Asylum based EAD cases process within approximately a month. Three weeks is not a month. Wait a bit.

What should ido

Schedule an InfoPass appointment. If not resolved, hire an attorney.

Can/should apply I-130 while change of status to F-1 is pending or should wait until approved? Any intent issues?

F-1 requires a no immigrant intent. By marrying an LPR spouse and him filing the I-130, you kind of going against that intent.

It's been one year for concurrent filed i-360 and i-485 and still not approved even after the USCIS interview of 120 days. SIJ

Sounds as if you may benefit from a personal consultation as you have a lot of questions. Your case is pending, you can wait, schedule an InfoPass...

Selected as the best answer

Being a family of four, how much money does the wife has to make in other to file the affidavit of support? And what documents

125% above the poverty guidelines for a family of 4 is $30,312 as of right now (numbers change every year). Your friends need to consult with an...

May I file an N-400 if I might qualify through an N-600?

If you derived citizenship through your parents, then the officer was correct, N-400 was the wrong form and you needed to file the N-600. ...