Pulling permits can be the ultimate bitch even when the political subdivision is staffed with nice folks. It is getting so bad that companies who do nothing but pull permits are springing up everywhere.
They will take your design, have it approved by the proper engineer and walk it through the system. They do try to establish good relations with the permit folks.
In my area, a sign shop who is properly licensed (ELECTRICAL or MECHANICAL, depending on the class of the sign) is the one who has to pull the permit. The client can BUT the client has to OWN the property. If the client is merely a tenant, then the requirement in our area is the landlord has to provide an approval letter which attaches to the permit app. and the client cannot pull a permit, being a tenant.
Bottom line, if you are not licensed to do the work, you can't pull a permit. If any sort of electrical work is involved, then you have to have an electric sign license. And in many areas, you have to have a UL sticker on electric cabinets. That's a few extra bucks.