If no interview is scheduled within six months of filing N400, can an applicant seek an order from a Federal Judge?

I think that six months is by far to soon to successfully seek a mandamus.

Is there anyway legally separated divorced us citizen can marry an Indian citizen who applied for divorce in mutual concent ?

No, almost divorced does not count. no court in the US can legally issue the special permission you want.

Please let me know if you can provide any assistance in deporting a green card holder person who has a criminal case pending.

You would need to contact ICE for assistance.

Does wife info needed for adjustment of status of my parents if we filed tax together ???

What you are talking about is the affidavit of support, I-864, which needs to be filed with each of your parent's adjustment applications. It is...

No, Advance Parole is not available to persons with H1B status.

I am undocumented (DACA). Can I leave USA without getting bar for 10 years?

If you have DACA and travel with Advance Parole you will not trigger the unlawful presence bar. The other issues that you raise should be addressed...

I want to know what happens to an illegal immigrant who is using a fake SSN to work?

What happens depends on law enforcement. If you feel that you have something to report, you should call DHS.

What are the chances of getting the EAD clock start again after missing an interview with the USCIS ?

Your attorney should be taking care of this. The Asylum Clock should be running if delays are caused by the court, USCIS or ICE. It should only...

Having H1 B VISA until 2017 but I 94 is expiring in November 2015. Can I cross the border and come back to get it extend?

Yes,if you have a valid H1B, you can depart and return, getting your I-94 extended.

Is there anyway to get advanced parole for normal H1b holder without any pending Adjustment of Status (Form I-485)?

Advance Parole is not a travel document available for H1B non-immigrants unless they have a pending AOS application pending.