Building and Safety Garage Problem

We live on Vernon on the east side of Lincoln behind Smart and Final.
We have a detached garage in the rear of the property that we use as
an office, being behind Smart and Final we have a ton of on street
parking and our alleyways are in such bad shape and pretty dangerous
that nobody uses them or parks in their garage, 36 out of the 40
properties along our alley use their garages for personal use, not cars.
Building and Safety is harassing us about using this as an office.
They also told me that they cracking down on all garage conversions in
Venice.
Does anyone have any advice on this, I can't get any straight answers
out of building and safety, I'm trying to find someone there who is helpful
or someone outside who can help me through this.
A great number of people in Venice use their garages for personal use, if
they are cracking down on everyone it's going to turn this community on
it's side.

Thanks,

Ty Allison