Apartment Mailboxes - How do I get one?

[Samson Kay]

I'm looking to get one of these wall mounted mailboxes, you know, the fancy looking kind that you see in larger complexes or at condos.

I've found them online and for a 6 unit, they are decently priced at around 180 bucks. I want it so that the front of my house looks cleaner, and to secure mail for the tenants.

If I buy one, how will the mailman access the box if its locked? I'm assuming I would have to drop off the master key with the post office somewhere.

Anyone have experience with this?

Thanks,