Why I-130 is taking way too long to process?

Difficult to determine without a review of your case. Best to consult with an attorney.

What is Financial and Civil documents?

It depends on the specific facts of your case, which NVC will specifically indicate.

Can I enter usa on B1/B2 visa, & then later apply for cos to H4 ?

No best not to enter on a tourist visa with the intention to change status upon entry.

Will I still be able to get my citizenship if I get divorced?

Best to discuss this with your retained counsel.

No you cannot hire someone to act as cosignor. Best to use someone within your own network of individuals who is willing and has the required income.

RFE for R1 visa?

Response after RFE varies based on type of filing and service center. Refer to USCIS processing times for guidance.

What does it mean that my application is pending?When can I receive the interview notice?

It means that your application is pending.

Hi, I am in the US on B2 visa and filing an extension. Will that impact my future travel to the US??

No, filing an extension should not impact your future travel plans.

Very difficult to say at this time given delays and possible furloughs.

Best to refile the I130 at this time.