Deductions & credits

Thank you.  
My question is more of an intellectual curiosity about Turbotax's logic, since I know what the ultimate result should be.

I take it that the Turbotax question on waiving legal right is simply a poor redundant question or poor logic.  (to answer your Q, yes - separate residences and Turbotax suggested HoH.  I have no questions or concerns about it).  It is easy to change my response to satisfy TurboTax by answering Yes "the legal right is waived" and that's fine all around.  I found the question unnecessary and misleading since it led me to the incorrect result.  The previous questions have already established per IRS definition that I am the custodial parent since no other written agreements apply.  Perhaps it should ask first if anyone else has a legal right before asking if it has been waived.  I found it odd is all. 
Again, thanks.