Recommend you consult an attorney in private to provide effective guidance.

Probably yes. Must file extension of expired E-2 visa.

It appears you case is processing. Be on the lookout for updates.

It's not clear. What is your question?

Probably yes when an applicant has criminal history.

Attend IV interview as scheduled and take your notification with you. The NVC update appears not to be updated and current.

Appear for your interview as scheduled, and don't forget your interview notification/letter.

Yes. Using EAD for employment will terminate your existing H-1B status. No. Once an EAD card is used for any employment, you may be deemed to have...

Short travels to Canada would be OK with 1-797 based on automatic revalidation rules.

You can work for another employer (like big retail stores) part time couple of weeks and then work for my employer full time. The employer is...