N-400 or N-600 Application? What route to take?

Contact a US immigration attorney for specific review. Generally, based on these facts, the safe approach is the N400.

General processing time nation-wide is 9 to 12 months. There is no regulatory time limit.

I want to apply for Fiance visa, I am not able to meet in person. I am the only care taker of my 85 y/o mother. I can not leave

You cannot file a K1 without meeting. Contact a US immigration attorney.

H1B grace period

No. You have to wait for the EAD. Contact a US immigration attorney.

Applying for I-765/I-131 renewal. Renewed twice earlier (EAD/AP card). Which service center should I send the applications to?

Review the instructions at www.uscis.gov and contact a US immigration attorney.

Renovating CR1 Green Card from abroad?

You can only file within the 90 days. Contact a US immigration attorney for assistance.

Review the instructions at www.uscis.gov and contact a US immigration attorney.

What documents do I need to file for my wife to come here?

Contact a US immigration attorney for assistance with immigrant visa processing.

Got my reciept date on june 16 2017,biometric done on june 29 2017..how long will i wait for interview and ead..

The asylum case will take years. EADS generally take 90 to 120 days.

Review the J1 Au Pair programs at www.state.gov.