First a paid tax preparer could NOT have used Turbotax since it is not licensed for professionals.
Now if they did use the online version to "help you to file your own return " then you have to have the userID & password to access the file.
How do I get a copy of a return I filed using online TurboTax?
https://ttlc.intuit.com/questions/1900748
How do I get a copy of a return I prepared using desktop TurboTax?
https://ttlc.intuit.com/questions/1900639
You can get a return transcript from the IRS for free : http://www.irs.gov/Individuals/Get-Transcript
For a $50 fee you can get a copy of the return from the IRS: https://ttlc.intuit.com/questions/1901218-can-i-get-a-copy-of-my-tax-return-from-the-irs
