I have an approved I140 from the employer A. I have changed my job to employer B and got 3 years of H1B visa.

In my opinion, you can get a 3-year extension based on Employer A's I-140 approval as long as it has not been revoked.

Which document can show to USCIS prospective employer's ability to pay immigrant wages for a part of the year (Jan-Apr of 2014)?

There are many ways to prove financial ability to pay the proffered salary - business tax returns, financial statements, and the like. If the...

Can I able to apply F1 again?

You can withdraw your F-1 petition. Do you have an H-4 visa stamp valid when you plan to return to the U.S.? More importantly, is your spouse...

Permanent Resident. I want to file I-130 for wife and kids living in Mexico...does each of them need a separate form?

If you anticipate to become a naturalized citizen soon, you should file a separate petition for your wife and each of your children. There is a...

Yes, you can use both W-2 and rental business income. These should all appear on your individual tax return.

So a voluntary departure is a 10 yr bar?what is voluntary departure between deportation?

I assume that you were placed in removal proceedings despite your status as a resident? If so, what caused you to be in this situation years ago? ...

I am us on b1/b2 visa , want to change my status to L1A Or EB13 , What is the difference between L1A and EB 1 3

Discuss strategies with a business immigration lawyer. If the foreign entity shuts down, intra-company transfer is out of the question.

Discuss the details with the petitioner's attorney to make sure you are admissible. Without more details about the 2008 incident, it will be hard...

TPS is within the jurisdiction of USCIS, not the immigration judge.

I become sick suddenly and I have a Medicaid, can I signed I-864 affidavit of support for my husband?

Yes. As the petitioner, you need to sign the I-864. As you mentioned, you have a good joint sponsor, thus, your husband should be able to immigrate.