Yes. And one more thing; we will not be held accountable for his actions any longer.
I am certain that you can start a sentence that way. Perhaps a teacher has challenged you to write an essay without ever doing that.
Yes you can. You can say something like "If I ever wanted something like this to happen..."
The shortest sentence ever is "I am."
No, you cannot start a sentence with "no" unless you need to do so. No reason exists not to start a sentence with that word, as you can see. No one will care if you do start a sentence with it.
Yes, I can start a sentence with "Is."
Why not? It is just a shorthand for "It is" eg "It's a far better thing that I do now than I have ever done" As long as the rest of the sentence makes sense with syntax, no problems.
Yes, you can start a sentence with a verb.
Yes, you can start a sentence with an acronym.
You can start a sentence with "Also"
You start a sentence with whatever word you need to start it with. A sentence can start with "A" if it needs to. A sentence just needs to make sense.
There are many examples for the word "ever" in a sentence, one of them being, How will we ever learn to play the guitar?
Yes you can! "For ten long years, I pondered how to start a sentence with 'for'."