Paint doesn't appear to be peeling, soffit/fascia appears to be intact, roof shingles look like they're all there. Maybe there's a weed or two that's too tall. If I had someone in my office who wouldn't shut up about it then I might ask him to replace the window that's duct-taped up, but only if he's using the building - if it's vacant and he's just using the lot, then I wouldn't even ask for that.
You don't really have any grounds for PM violations other than the vehicles. Maybe it looks worse in person, but from a Property Maintenance Code / Code Enforcement Officer standpoint I can see why you're the only one who's excited about this - if this guy applies for and gets a business license to use the lot (since it seems like the City requires one), then there aren't any violations at all.
(**Assuming the building is vacant, and/or only used for storage. If the guy is using the building / has regular business hours there, and/or it's open to customers, then we're having a different conversation.**)