Hire an architect. All of these problems would have been conveyed to the business owner, avoided altogether, or could have been mitigated some other way. It's

Hire an architect. All of these problems would have been conveyed to the business owner, avoided altogether, or could have been mitigated some other way. It's a shame, because usually a competent building owner/manager will usually inform a new tenant that they should or demand the use an architect (especially when poking holes in roofs).