If you are using TurboTax Live Assist & Review, here’s how to submit your return for review: https://turbotax.community.intuit.ca/community/product-information/help/i-m-using-turbotax-live-assist-review-how-do-i-submit-my-return-for-review/00/873793
If you have TurboTax Live Assist & Review, here is how to talk to a Tax Expert: https://turbotax.community.intuit.ca/community/navigating-turbotax/help/i-m-using-turbotax-live-assist-review-how-do-i-talk-to-a-tax-expert/00/873764