Brains over Brawn states
Brains over Brawn (Ex): At 3rd level, you gain your Intelligence bonus as a modifier on Strength checks, Dexterity checks, and checks involving skills based on Strength or Dexterity, such as Hide, Climb, and Jump.
My master states that maybe I'm over-reading, Rolling Grapple isn't a stregth check. So, community, help us out! =)
I'm almost certain that he's right, I think that for making this valid it should say
Brains over Brawn (Ex): At 3rd level, you gain your Intelligence bonus as a modifier on Strength-based checks and Dexterity-based checks
So, reiteration here: Brains over brawn Factotum ability applies for grapple and initiative?