Any change for your parents yet?
I’m in a somewhat similar situation with me being the primary beneficiary and my wife, the derivative beneficiary.
My timeline:
May 15th: Paid immigration and processing fees for my wife and myself.
July 1st: We entered the US via San Francisco.
July 7th: We received our SSNs (both).
Aug 3rd: We received notice that our GCs were being produced.
Aug 8th: Wife received notice that her GC was mailed.
Aug 11th: Wife received her GC.
I’m still waiting for an update on my GC.