TurboTax only supports Form 3115 in Forms Mode, which is only available in the desktop products.
With respect to the location of a tax professional, it really does not make a significant difference provided that professional is familiar with CA tax law and procedures (local NC would be more convenient for you, of course).
You might want to consider an enrolled agent.
See https://taxexperts.naea.org/listing/service/individual-tax-preparation
Regardless, you should inquire as to the individual's, or firm's, experience with respect to preparing Form 3115.
