@Brie Schmidt, have you thought about a local PO Box, where they could drop in a mail slot?  

Well with this idea you have to consider that on a military base usually will be a place for the service member to stay while waiting for a slot to open.

A scene in the movie "Casino" comes to mind when Robert DeNiro's character has to fire a manager after 3 slot machines simultaneously hit the jackpot and the manger did nothing.

The jumpers in the meter slots don't look heavy enough to carry much more than about a 60 amp load, if that.

They get it with their move-in folder in the little biz card slot.

I use the storage room at my apartment building installed a very nice mail slot and gave the door a number.

Notice the singed neutral slot (the wider one).

I have 4 loan slots filled (including this one property).Looking forward to your insights!

All of that to say, the primary gaps in my team are the contractor/subcontractor slots.

Good opportunity to explain that they should get it and that your are not responsible for their losses if, for example, a break in happens.These documents go in a folder with a business card in the slot, so packet is professional and presentable at signing.