Can my wife get a green card and continue to live outside the USA with me?

selling your house etc are all perfectly normal things for someone to do when they move back to the US
Many people maintain houses in other places, be it the south of France or the Costa del Sol or wherever els, so I beg to differ that it is "normal" for someone to give it all up just to prove intent.

SusieQ you have been very helpful and a pleasant correspondent. Thank you and good luck.