If you are legally authorized to work, then there is no cap on your income. This is America, you can earn as much as you want. Don't believe all...

No. That is one of the problems with DACA, it is a short term fix that does not establish any permanent status. It's just a renewable work...

Can i send for of I-864 with I-864 a?

Yes, you can. You have asked a lot of questions, it might be time to discuss with an immigration attorney.

Can i add my salary to my sponsor in I-864 form ?

Yes, you will need complete the I-864A in order to add your income.

You need to makae at least $25,000 depending upon the household size. Check the I-1864P guidelines...

How is long does it take to approve or deny to reopen an immigration case?

There are more details that need to be added. You would need to disclose your citizenship status among other things.

It's not clear to me what you are asking. Please rephrase.

Filing for minors

Since your husband is the US Citizen, it will be quicker for him to file for his stepchildren.

Latest travel Ban affecting I-130?

It's going to take a while for her petition to be approved anyway. You can try to get a B visa approved but given the circumstances it may be...

How long does it take for National Benefits Center in MO to process application for I-485 employment based?

The I-485 is processed out of your local field office. If your local is Newark. NJ, for example, they are currently processing cases with the...