Here is the news:
I called them 5 times and they don't answer the phone. Although if I call with another phone they answer immediately.
The leak that Alpine Homes told me they fixed is back. Apparently slathering caulk on stuff doesn't fix it.
I am still waiting to hear back from Alpine Homes about the vent issue.
After sending an image to Alpine Homes and explaining in more detail the specifics of the code violation they denied me again.