Retirement tax questions

Thanks again for the clarifications! 

 

And yes my multiple Schedule C incomes are aggregated by Turbo Tax for sure. Thank you for the explanation.

 

And sounds good on the EIN, I got the impression for that entire section that the info was mostly for situations that did not apply to mine (those who are not self-employed), and as I mentioned in the original post it's not clear what info is required and what info isn't applicable (and can be left blank). 

 

Thanks once more for all your invaluable help!!