Let me first thank you for guiding hundreds of us with your valuable advice. My sincere thanks to you. I have a question regarding the inter-changeability of EB2 prority dates. I'm an Indian citizen and my wife is a Russian citizen, born in Russia. She will be filing as my dependent on my green card. I read on some online forums that I can user her country's priority date ("current" as of today) for the green card. Is this correct?
Yes, that is correct. This is referred to as "Cross Changeability."