If you did not give your name when you made the complaint with the Code Enforcement, then I would file a tort claim against the City or file a suit against them. If you stated that you wish to be anonomous, then they can not legally give your name out. I worked for the City for almost 3 years, and even if they gave us their name, we still under no circumstance ever gave out their names.
We do have a neighbor now that has been complaining on us. My husband works on vehicles for extra money, and she doesn't like them setting in our yard. Today, him and our oldest son was working on one, for one our local Police Officers
The neighbors must have thought we were doing something really bad around here today. We had half the Police Department at our house
Curious to see if the wonderful neighbor will complain again. We do try to stay on the good side of our City Officials. Works to our advantage. But, she has absolutely no reason to complain, it's not like they set here for months.
Neighbors, you just gotta love em
There are some things that I feel warrant a complaint and others just do not. Loud music that rattles your windows in your home, needs to be stopped. But, the bad is that, they happen to be CRAZY!
If you can prove that the add on was their when you bought the property, I would go after the sellers wether they are poor or not. Looks like you have a tough road ahead of you, but I do hope that is just blows over for your sake.
I would also dress the shed up like a playhouse, I think that's a good idea.