I am writing to my boss to get consent on a requirement document sent to our team to review.
i have reviewd it and it looks fine but before approving i want to check if he has reviewed or has anything that he thinks might have left out.
Do you have anything in specific that has been left out before we give the approval on this release.
(I'm not a teacher.)
Since specific is an adjective, you don't need a preposition before it to modify the word anything. Also, that sentence should end in a question mark.