I have been married to a Japanese women for about 9 years. We have two kids and they have dual citizenship (USA and Japan). I myself am a US citizen. We were thinking about getting her a spouse visa / permanent visa .
However, at this time we have no plans to actually live in the USA and just go for vacations. Having it would be just an emergency type of thing, in case of North Korea and China start bombing the hell out of Japan.
I own a home in the USA and Japan, so we have a residence there but again no plans on living in the USA and only going for vacation every year for a month or two.
My question is: If we don't go to the USA every year, will she lose her visa?