Deductions & credits

Thank you for the detailed response. 

Copied here is a statement from your response. "You must attach the completed Form 8283 with any the required signatures to your tax return, either as a PDF attachment when electronically filed, or mailed to the IRS with Form 8453".

How do I add a PDF attachment to turbotax so that it can be electronically filed with the rest of my turbotax California state submission? It is not clear to me how mailing form 8453 with form 8283 will help. The form must be submitted to California not to the IRS.