Thanks! When I called American Airlines they said “sometimes” the TSA people will forbid boarding not them! And to call Canadian councilor..... called and they said no problem entering CANADA since I’m PR but is up to Airline to allow boarding to fly in one way or not. It was them who suggested showing a return passage to US just in case.... I have bus ticket for travel back to US just in case (only $17USD) so hopefully that will be enough “just in case!) We are closing our home loan the day after my re arrival so paranoid about something going wrong!! Fingers and toes crossed!!