You should send a status inquiry. If need be, you should contact the CIS ombudsman to determine the status. If that fails, you can file a...

Normally my experience is that you can be admitted only 30 days prior to the start date for your visa status.

In fact the form I-134 cannot be enforced. It is up to you whether you want to state under oath that you intend to support this individual.

You should use on your green card application whichever name you prefer to have on your green card and not the other name.

My understanding is that the CBP will admit a person even with an expired green card. You may be questioned and you may need to prove you did not...

You might need to hire a lawyer if you do not know what to do. Yes, you file the EB2 NIW with form I-140.

No, once you have a green card it is too late to change the joint sponsor. Rather, the sponsor and joint sponsor remain liable if the alien falls...

Filling for an EB2 without a petitioner does require you to file NIW, that is correct. Note that you do have to prove you will be working on your...

They will send it to whatever address USCIS gives them. It might save you time to let them update your card, but if your card does not need any...

You can email the consulate to ask but in reality you very likely need to file a petition for writ of mandamus.