You may be the first.That being said, tucking it in a door, putting it THROUGH a mail slot that is actually cut in the door, or putting it in their newspaper delivery box is more effective than using a mailbox and doesn't break any laws.However, hand delivery is very time consuming and expensive and probably not incrementally that much better than a mailing. 

@Ree Rolle I used to be like that s lot with strangers and I still kind of am.

The icemaker usually has "keyhole" slots in it - lift up on the icemaker and pull it away from the wall of the freezer to free it from the screws. 

While there are s lot of neigh sayers above I’ll take a different approach that I haven’t seen anyone say.

You need to jack up all the weight on top of that existing joist to get it out, which usually includes the sub-floor above (if you don't take that slot out), the bottom plate, the wall, and on up. 

@Beary Bowles I find a closet if possible and install a mail slot with a $12 mail catching bag on the other side.

You wouldn't want your oil change guy to schedule three appointments at the same time slot and then the guy that offers the most cash gets his oil change and the other 2 are SOL.   

I was planning to charge tenants between $75-150/month for both sides depending on the slot and size (there are a couple different sizes).

Almost done putting our team together in the OKC market and need to make sure we have this slot filled with a strong player as well!

Almost done putting our team together in the OKC market and need to make sure we have this slot filled with a strong player as well!