hey, bro.s! getting liad is no prob any where, especially if you are willing to pay for it. no need to go to back and retire in china for that, right?
the question was how long would rmb 4 mil last there? well, depends where you choose to stay and what life style you maintain right?
how about never let anyone know you are a haigui, and go to the remote places to experience different life styles? i have been to many places in china in past few years and i will tell you it is much more fun than travel around developed countries.
write a novel on those experiences you may add some nice sum to your retirement fund...