Seen and done loads of pitches and 2nd hand ones rarely smell right.
Taking it on face vaue, your dad will know this as well, so that raises more questions.
But...
I've never presented to a board of governors, so weight anything I say lightly.
Although my weight is light, my hatred of the double act is a raging fire (a small one, a sort of bonsai inferno).
People don't listen to presentations.
They pick up on tone, and pattern match to things they approve or disapprove of.
I'm guessing your dad sells stuff ?
That's good, usually. But in business one is constantly getting pitches, and doesn't have a problem with being on the recieiving end.
I fear that the board will actually mark you down if it looks "too corporate".
A key dyamic here is that they want to retain control, and you need to stay above the boundary of competence, but below the one of bieng too much for them to handle. They won't use that term, preferring "arrogant", or "too smooth", but you don't want to go down that route.
Also, this is an evening metting ?
People's attention span is compromised after work, and two streams may cause their brains to work too hard.
If he's providing the money, then let him do a short money pitch.
But the danger of a 50/50 split is that interrupting questions will be fought over by the two of you. I've seen that go bad big time.