How much float belongs between the last inspection and move-in?

A genuinely fixed move-in date can help keep a remodel coordinated, but it also seems like a risky date to build the whole schedule around. If a permit inspection slips, several finish tasks may be waiting on that approval; meanwhile, some other work might be able to overlap without getting in the way.

How do you work backward from a hard occupancy date without making every earlier milestone unrealistically tight? I’m especially curious how much slack people preserve between the last inspection and final cleanup or move-in, and which tasks are best left with flexible dates rather than treated as firm handoffs.