Mailbox for Basement Unit...Legal ?

[Ley Nezifort]

Hello Fellow Landlords,

I wanted to understand the legal aspect of adding an extra mailbox labeled “B” for the basement unit in a small multi family (Duplex...Fourplex). I can imagine landlords typically get general mails they can’t send to the units of their tenants, so where do you typically send your mails for your rental properties ?

I’ve seen the extra mailbox quite often in Newark NJ, where I currently invest, but I’m not quite sure if that’s legal or not.

Any insights would be quite helpful, Thanks