I am a US citizen currently living in the UK due to work. I would like to apply for my brother's green card however due to the application length (i have been told it could be 12-24yrs!) I thought I could apply for my mother because it is a much shorter wait, she could then apply for my brother.
Once I have filled her application, do I need to be in the US when she eventually gets her GC and moves to the US?
My mother and brother are both in the UK.