Verification starts with an inventory of claims
Before you read for style, list what the copy asserts. Numbers, dates, quotations, superlatives, comparisons, awards, regulatory statements, promises about outcomes. That list is the verification plan, and it is usually shorter than people expect.
Generated drafts concentrate claims in the places that sound most authoritative: the opening statistic, the three-bullet proof block, the comparison table, the customer quote. Those are the paragraphs to read slowly.
Anything that cannot be given an inventory entry is either opinion, which should be marked as such, or decoration, which should be cut.