I can confirm that TT will NOT let you Efile the return if you need to file Form 1310. It tells you that you will have to send the returns by mail when you run the final check in the program.
I ASSUME that if form 1310 is NOT being filed that you can still Efile as "Personal Representative" for the deceased. But I won't know for sure until I try it. So I will try to file at least a few days before the deadline to make sure I have enough time to send it on paper if Efile is not accepted.
