The law transfering sumter was effectively voided by the secession ordinance.
A fact that became clear to the ships once they approached Sumter in daylight.
Wrong. The ships saw the bombardment happening in the distance and even debated whether or not to reinforce the fort during it. It was decided that without the Powhatan the endeavor would be too risky and could incur large casualties.
Nonsense. In both cases the instructions were clear.
No it wasn't. One used active and consequential language. The other used passive and intentionally vague language. There is no way around that simple fact.
Not legally. There was nothing in the original transfer that allowed for that.
No it wasn't.
Yes it was.