Yes, but in this case, I am not living in the US. I intend to do immigrant landing and come back to Canada while still continuing to do my job, pay taxes, mortgage (until I sell the house) and bills. People living in border cities live in Canada and work in the US. Though there US employers might provide them with insurance, but you are saying they are not covered in Canada even though they live and pay taxes in Canada too? Since their primary residence is Canada. (check commuter status)