@MarilynG1 - that's not helpful. We're not asking for TurboTax to *support* form 3520 - it can't be e-filed, and it is sent, on paper, to a completely separate address. If you are required to submit such a paper 3520, and that 3520 represents a foreign bank account, you are also *required* to file an 8938, on which you must indicate that you have also filed one or more 3520 forms. Just mentioning the 3520 on the 8938 causes Turbo Tax to refuse to e-file both federal and state returns. This is clearly a bug - entering [1] in that field in a *supported* form 8938 should not disallow e-filing.
