Limiting yourself to one or two days a month is absurd and a thing of the past. However managing staggered expirations effectively is best done when you have all leases end on a specified day (Monday). You can still use a lease expiration graph or chart to manage the number expiring in a particular month. This allows 90% of your move outs to move out over the weekend then give you keys by Monday. By doing so, you can begin maintenance, etc and theoretically have someone move in on Friday / Saturday resulting in a 4 (ish) day vacancy loss. I’ve run multiple properties and portfolios like this and it has been the most effective way to increase overall NOI despite demographic, delinquency and other factors. I’d fight tooth and nail if told I could no longer do this as it immensely contributes to my NOI and Total Rent Revenue.