To clarify for me what I think you are saying:
1. take the 1099 Received and split it between myself and the deceased.
2. In TT I input I input my numbers on a 1099-div for me
3. in TT I input numbers that I am the nominee for (the deceased) into a separate 1099-div and then indicate that the total amount as an adjustment.
4. I send the the recipient of the income (copy to IRS with 1096 transmittal)
In that way all the fields will have the proper split.
Likewise I would create 2 1099-B's and indicate a total nominee adjustment for the deceased portion as well, sending out another 1099B to the IRS and estate
