It takes about the same time if not longer than a spousal petition. If the plan is to marry soon, may as well do a spousal petition....

You may want to explore VAWA and see if you are eligible for it.

Yes, as long as you have an approved advance parole as a back up option.

I agree with my colleagues above. You should be able to a H-1b transfer as long as your within your grace period or I-94 is valid, whichever is...

Specialty occupation RFE's are usually complicated. That being said you do not always need an expert opinion if you can get letters from people...

Yes, you'll need to enter back on H-1b.

You are the self petitioner and the beneficiary. Leave the point of contact for company blank. You can also pull up I-907 instructions from USCIS...

It is recommended that you still file for N-600, if you are eligible.

File while your I-94 is still valid.

Separate petitions required for each applicant.