You would have to purchase each State separately. The best way to prepare more than six states would be to use TurboTax CD/Download Version.
See TurboTax FAQ - How many state returns can I prepare in TurboTax Online?
https://ttlc.intuit.com/replies/3420559
TurboTax FAQ - How many state returns can I prepare in the TurboTax CD/Download software?
https://ttlc.intuit.com/replies/3300044
To speak to a Phone Agent concerning purchasing multiple states see TurboTax FAQ - What is the TurboTax phone number?
https://ttlc.intuit.com/replies/3300041
