Interested in Language
Rachel has lived / has been living in England since she was born.
Can either verb be used?
I suggest you use "has lived."
The "has been living" version suggests it's temporary. It's not wrong, but it's the less likely choice.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.