So far, we've delivered over 480 properties and our repeat business rate is over 90%.

Ask her to make it official and deliver the notice in writing as well.

Delivering Pizzas every night3.

That only means that you'd have to file an extension on your personal return until such time as the sponsor delivers your K-1s so you can then complete your personal return.When evaluating syndication sponsors, you should ask them about their track record of delivering K-1s. 

or would both tenant's mail deliver to the same mailbox?

Knowing the LA multifamily mkt I know many are not being delivered vacant and almost all are subject to city, or county rent restrictions. 

But he will most likely have some basic knowledge and if you tell him what shingles you want he can verify that they correct ones are used or better yet have the handyman pick up and deliver the or at least order the shingles to be used. 

Upon move-out, any and all damage beyond normal wear and tear will be assessed against their deposit.Whatever you do, 100% do not come by to pick something up that they were supposed to have already delivered to you.

Deliver the notice of non-payment to them.

PODS, Smart box, some type of box delivered to door.