My family and I all have green cards, but for the last 3 years, we have been living outside the US (in India) with re-entry permits. I work for a large tech company and have technically been "on assignment" for that time, but honestly, we've more or less shifted base entirely to India at this point.

Our re-entry permits are coming up for renewal soon. We're considering giving up my wife's and kids' green cards, and keeping only mine. The reason for keeping mine is twofold: (1) most of my assets are in the US, and I want to take my time shifting to non-US-domiciled assets to avoid the non-resident estate tax; and (2) I still travel frequently to the US -- 3 or 4 times a year -- for work.

Do you foresee any problems with my family giving up their green cards now, and me holding on to it?