Hello,
I think you are looking to upgrade to TurboTax Live as with TurboTax Live you can schedule an appointment with a CPA/EA before you file.
https://ttlc.intuit.com/questions/3859448-what-is-turbotax-live-what-is-expert-services
As it states in the following instructions to upgrade you can upgrade or switch to a higher version of TurboTax after you've started your 2017 return:
https://ttlc.intuit.com/questions/1913284-how-do-i-upgrade-or-switch-to-a-higher-version-of-turbotax...
