Hello,
No, you don't need to have My Account set up to file with Turbotax as you can login with a partner. Should you require any additional information, please contact customer support: https://turbotax.community.intuit.ca/turbotax-support/en-ca/help-article/tax-return/contact-us/L1h8P3E0x_CA_en_CA#M19
Thank you!