When I worked for a CPA firm before going out on my own we used a review checklist on all 1040 returns. Items to double check such as filing status, prior year carryovers, reconciling Sch C, etc.. The preparer would initial each question, then the final reviewer/partner would initial each one to signify the return had gone through the review process and ready for filing.
I've been using this same template for years but feel with the new tax laws it might be slightly outdated or could use general year/year updating. Does anyone know if there are such checklists available either through an organization or for purchase? I believe AICPA tax section has something like this but I don't belong. Or maybe someone is willing to share what they use.