We are excited to have a one day overlap so we can move our food and items at our leisure. We know this may never work out like this again!
Overlap is helpful, but Marriott is concerned and therefore understanding----and has a better solution than losing a whole day.
The HH Marriott resorts are all awesome in this regard:
If you move from any property to another, you get late check-out and you don't have to leave the first resort
until your unit is ready at the second resort. We've done it many times.
They accomplish this by the late check-out already mentioned, coupled with a "priority" early cleaning and early unit readiness
at the second resort, so when you get the call on your cell, basically you drive from one directly to the other
and experience an expedited check-in, food and all.
It's really well-coordinated by both resorts who remain in communication, and I find the whole process quite thoughtful.
The key is letting the first resort know well before the day you check out.
They will initiate the communication with the second resort, and they take it from there, no hassle.