Obtain a government letter that indicates no marriage exists.

It should not be an issue as USCIS should accept.

Be patient and await notice. It will come but timeline unknown.

Would it be a better option to Withdraw from an N400 Application due to the criminal case not being settled?

Yes this may be advisable but full review must be made for better determination.

It can take 2-4 post interview for additional review to be made.

Hi I want to ask I applied for divorce in Pakistan?

If the divorce was legal in Pakistan, it should be recognized in the US.

Bringing the certificate to the interview will be sufficient.

, , I would like to try to get my mother-in-law a visa to come visit me and I would like to meet her how can I do?

She will need to apply for the tourist visa on her own by establishing sufficient financial and familial ties to her home country.

Can my son come back to US after visa expires and we take and give his green card to him in India ?

He should enter with the valid visa and the GC will come to him thereafter.

I-944 RFIE, how many days to respond?

Yes you can use an additional 60 days given USCIS flexibility.