Yeah, I had thought about that, but it just seemed kind of clunky. We store a lot more information about the office than could be used in the custom fields. We keep information about the security system, telco info, service provider contact info, pictures of equipment, etc.
I had thought about using the Comments tab, but I really need HTML/WYSIWYG editor to make the different sections stand out. And then that kind of defeated the purpose of comments--to leave comments about issues, repairs, etc. Maybe this could be a feature request...