Yes, this is possible. You may reenter before PRC expires.

Answer "yes" and explain why you have not filed.

Yes, TPS EAD appears to be a favorable choice.

Probably yes. The selling activity must be passive, among other requirements.

You have not told us how long spouse a USC has been. Birth in the US cannot be assumed.

The choice is yours. Send packet when complete or send now and receive RFE later.

If your US citizen spouse has been a USC for at least 3 years, you live together, and you meet other eligibility requirements, maybe yes. You may...

US Immigration law does not address your question, it is best to ask your local law enforcement.

In addition to the above legally sound assessments, you must be prepared to discuss with USCIS reviewing your N400, your extensive long absence...

Online updates are inaccurate occasionally. You should try case status inquiry using application receipt number.