Showings while occupied with tenants

[Sada Rafi]

Hi all, I have tenants whose lease is up end of Sept and they asked to change it to month to month since they're new place will be ready either end of Oct or end of Nov. I have agreed and that's based on our lease doc. I have started advertising and have some interested people who like to see the house. I have given 24hr notice to my current tenant for showing and they want to be there each time a potential tenant comes to see it. They are saying it's inconvenience to them. I am trying to group people so that I can minimize the traffic but not sure how that can work without me losing a potential good tenant trying to schedule it for when they can be there for me to show. Their reason for wanting to be there is of course safety (what if they come later and steal our stuff later) and I respect that but what is the effective way of handling this? thanks for your thoughts in advance!