I don't see any restrictors on travels within the US.

Yes, you may sponsor. multiple individuals every year. USCIS applications are adjudicated on the merits.

If I was a candidate for naturalization, I'll have my application clear of all negativities, especially in the statutory period, even if not required.

You may file AOS application packet now.

In the interim, while I-130 and I-485 are pending, file I=765 and I-131 to allow spouse to work and travel abroad, respectively. No USCIS filing...

Yes, proceed with a converted I-751W. USCIS would schedule the interview accordingly. Consider attending interview with counsel. A decision cannot...

If I were you, I would focus on PD and not last action and filing dates. It appears you are not familiar with familiy preference procedures. The PD...

I agree with the above suggestions. However, I would like restate that not all immigration laws, regulations, and procedures are on the form....

In general, probably yes. It will dpend on the specifics of your case, rather than generalized factors.

Yes, you can file I-751 after for divorce, but what are the circumstances? More information is required to give your question some meaningful...