You can't efile more than 5. Maybe some can use the Online Free Edition? You can print and mail the rest.
To get more than 5 efiles you need to use one of the Intuit Products for Tax Professionals, https://taxpro.intuit.com
And to prepare more than five e-files, you will need to sign up with the IRS as an ERO - an Electronic Returns Originator. How to become an Authorized E-file Provider…..
http://www.irs.gov/Tax-Professionals/e-File-Providers-&-Partners/Become-an-Authorized-e-file-Provide...
