A package that comes back as incomplete costs a round trip before anyone has read a drawing. The reasons are rarely design: a sheet the index promises and the set does not contain, a stamp without a signature, a file named the wrong way, a set split into pieces the city wanted as one PDF.
OK Permit looks at the package before the city does, for the first submittal and for every resubmittal after it. It opens every file the moment you drop it, then runs the checks every city asks for, then your city's own submittal rules — naming, formats, packaging — read from the city's published requirements. You see how many problems it finds, and the first ones in full, before you pay.
After the city answers, Comment Letter Response takes the letter from there. OK Permit is opening soon — leave an email and you will have it the day it does.