Became PR in 2012. US Citizen now. Went to Canada several times either on US Green Card and later on US Passport. Once was stopped at airport and was told by officer that I did not meet RO so it would be best that when I get home, I renounce it. I never did. Since then, I got DL and Health Card with no problem. From what I can tell, my status is OK. Just have to go spend 2 years to get PR Card renewed but want to see if there is a way to check if my PR Status is OK.