RPB wrote:1) It's about the owner.. or someone acting on property owner's behalf
not your boss, a renter/lease etc
It's a "property owner rights/property rights thingy Notice the Statue says "owner" (or acting on owner's behalf/under the authority of owner) instead of, whoever may be leasing the property from an owner
2) Sign can be anywhere if it is clearly visible to Public/prominently displayed and otherwise fdulfills requirements of font size, contrast etc.
actually no it is about the renter, if you rent a space no matter the use as long it is not a daily short term rental it is considered as being under your control, look up the renters laws. so the OP could carry in the office, but have to comply with the building owner outside the offices rented. when a property owner has space for lease under long term contract they give up the rights of occupation to the space rented governed by the lease and agreed upon terms.