There is no such evidence that proves that the chances of RFE increase when applying under premium processing.

Request a UK immigration attorney’s assistance.

If the sponsoring spouse (or joint sponsor, if any) did not file taxes in the previous year, they will need to include an exemption letter...

Yes, you may file I-130 for your brother.

It will be beneficial to print out the appointment letter.

This update is not concerning, it simply means your case is processing.

Since the court-granted extension is still in effect, expect the USCIS to provide you with an answer before the extension ends- even on the last day.

Yes, you can file I-485 and I-130 concurrently. I-485 is only available as a physical application that needs to be mailed to a USCIS service center.

An I-94 is required to file I-539. Contact Customs & Border Patrol to access your records.

Yes, you can travel on H1B/H4 visas. Check the Mexico Government’s website about their visa regulations.