Sorry--no---pdf's cannot be attached to an e-file when you use TurboTax. A tax professional may have had a way to do that, but the do-it-yourself TT software cannot. If you have to include a document then your return will have to be mailed. Sorry.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
