Do I need to send tax transcripts for I-864 vs all the info below? Is there any issues with filing single when you are married?

You must comply with all requests for documentation on the RFE. Incomplete responses can cause delays and even a denial of the application itself.

Fiancee in the U.S. getting married soon., fiancee visa or spousal visa?

I would consult with an attorney. It seems that your fiance has already overstayed.

I-130 for a family, and priority date by the NVC is current. does the whole family have to immigrate ?

In order for any of them to immigrate, the principal beneficiary, your sister must immigrate, however, the dependents are not required to immigrate...

Looking for information on EB5?

Yes, the EB-5 program is active and still a viable option for serious investors. Consult with an immigration attorney.

My B2 Visitor Visa Interview Experience at American Embassy in India. Is this outcome normal?

Yes, that is very common. The Consul was not convinced that you are a bona fide nonimmigrant to the US.

Hopefully, you have a receipt for tracking with the postal service or FedEx.

Marriage was held in aborad can divorce in usa

Yes, it is possible to obtain a divorce in the US if you meet the residence requirements for jurisdiction within your state.

L1 to H1 Transfer for same company

I would first discuss this with the company's immigration counsel.

Can F student get OPT after obtaining bachelor's degree in one school but already being transferred to another for MS?

You must be recommended for OPT at least 90- days prior to graduation.

F1 visa

You must discuss this with the DSO at your school to see if the school will support a request for reinstatement of status.