Joint use. The off-street parking requirements of two or more uses, structures or parcels of land may be satisfied by the same parking or loading space used jointly to the extent that it can be shown by the owners or operators of the uses, structures or parcels that their operations and parking needs do not overlap in point in time. If the uses, structures or parcels are under separate ownership, the right to joint use of the parking space must be evidenced by a deed, lease, contract or other appropriate written document to establish the joint use. Said document shall bind the owner, his/her heirs and assigns to maintain the required joint uses throughout the life of such uses and shall be approved by the Village Attorney.