Seeking experts opinion. My mother will be visiting in February to May next year. Her current visa expires in April. She has been to visit me in Canada 4 times over the last 10 years usually for 3 weeks at a time. I am a citizen. Should she travel on her old visa then request an extension 30 days prior to the visa expiry or apply for a new visa now ahead of her February departure so there is no need for an extension in April while here?