The Inspecting Officer admitted you to the United States with a new I-94 valid until the new expiration date.

Whether or not you can file EOS depends on the current immigration status (the status before you filed your AOS).

Although your sibling may seek to apply for an F-1 Visa, he could be questioned about the I-130 and his true intent to come to the United States.

Unfortunately, there is no Premium Processing service available for L-2 only. However, timely submission of the L-2 Application allows your spouse...

You may submit your Court Order, along with a copy of your Naturalization Certificate to show your name change. Also, please make sure to submit...

The answer depends on the location of employment (United States or any other country(ies).

Marriage itself should not affect your spouse's F-2 Visa Application, although the U.S. Embassy or Consulate may find other basis for denial.

Your relocation may impact and/or delay your spouse's Consular Processing as you need your permanent residence in the United States and/or...

You probably need to wait a little longer. However, your "moving out" needs some more clarification, though.

You need to contact your school personnel to request for reinstating your F-1 Status.