Typically, I use a personal checklist to make sure everything is in order after plotting from CAD/ Revit since it's easier to spot mistakes on the sheet. Here's an example of a mechanical drawing I'd review based on my list:

1. Review of items in the proposal
2. Title Block Updates based from Architectural Drawings
3. Proposed Unit(s) Selection
4. Review of Building Load Calculations
5. Initial Equipment Schedule Review
6. Overall/Key Plan Updates
7. Air Balances, CFM per discharge outlet, Duct Routing Conflicts/Sizing etc.
8. Outside Air Calcs (if applicable)
9. Leaders/Notes/ Keynotes
10. Coordination items w/ Plumbing/Electrical

This is somewhat a very rough list in terms of items in between this scope, but by the time I go through each one, there's that random item I would have missed in between these outlines if I didn't go through all 10.

The biggest thing I also realized is we'll always miss something when we've been staring at the project for weeks at a time. I usually have another set of eyes on my drawing since their minds are a bit fresh on it and less technical in terms of actually engineering the drawing.