Cisco Catalyst 1900 VLAN help

I just took over a building that has 15 - 20 Cisco Catalyst 1900 switches. This is an apartment building and there is 1 port a switch for every unit in the apartment building. We don't want the different apartment units to be able to talk to each other. So basically we want every port on this switch to be isolated from each other. If someone could just walk me through the steps to do this via chat, I will gladly pay you for this information. thanks. ## Deliverables [login to view URL] requirements notice: As originally posted, this bid request does not have complete details. Should a dispute arise and this project go into arbitration "as is", the contract's vagueness might cause it to be interpreted against you, even though you were acting in good-faith. So for your protection, if you are interested in this project, please work-out and document the requirements onsite.