Can my husband travel to mainland to visit me as he only has a single entry with annotation Wud this affect his pending 221g?

Yes, travel to and from Hawaii is deemed domestic travel as Hawaii is one of the US's 50 states.

Will my record show in background check?

It may or may not depending on what has been reported in the case; although it may be premature to actually show up at this stage of proceeding. ...

Will perpetrator be prosecuted?

No, not necessarily as these decisions rest with solely with the prosecutor. However, if the I-918 supplement B has been certified, then you can...

Evidence of non immigrant status.

This question has been previously answered. Please see prior responses.

You should be following the advice of your company's immigration attorney who is well versed in the facts and history of your case.

You didn't provide sufficient information to address your issues. Under what visa did you enter the U.S.? Is it still valid and does an I-94...

Indicate yes and provide citation and disposition for same at interview - should not be a problem.

Immigration N600

I agree with attorney Barlow that much more than insurance is required to prove the custody in order to seek a certificate of citizenship, which is...

In order to seek VAWA relief, you must be divorced or separated from the abuser. Otherwise, your application will fail.

OPT card delayed by 8 months. Need help

You appear to have exhausted all actions in regard to this matter. You may want to contact your DSO regarding this issue.