The correction letter arrives as prose. Responding means reading each comment, finding the code it points at, checking your drawings, and writing something defensible — forty times.
Drop the letter, and the plan set if you have it, at commentletter.com. Every comment becomes a row: what the reviewer asked, the code section it rests on, whether your drawings already satisfy it, and a professional response drafted in the past tense, ready for the resubmittal letter. Where the reviewer is likely mistaken, it says so and drafts the pushback. Then ask anything in chat — the answers cite the exact code text and the sheet.
The output is the city's own letter with your responses filled in under each comment, as a Word file, plus the whole tracker as a table. A deliverable, not a chat transcript.