Yes, you can use TurboTax software to prepare a non-resident return. However, TurboTax Live services like Assist & Review and Full Service are not-recommended for non-residents.

And, yes, normally non-residents would have to print and mail their returns. However, due to the delays that the Covid-19 situation has caused the postal system, the CRA has decided to allow non-residents to fax in their returns. You can find the correct mailing address and fax number that you will need on their website: https://www.canada.ca/en/revenue-agency/corporate/contact-information/where-mail-your-paper-t1-retur...

Thank you so much for replying, Susan. 

I'm wondering why is it that it's not recommened to use live. There are investment sold (capital gain) I have no idea how to calculate. Could I still use the live assist or it has to be done by myself?

Thanks for informing about faxing would be an option. I tried to click on the link, but it looks like it doesn't work. Where could I look up for their fax info? Thanks!