Hi @Giovanna125
I would change the time of your check out time from 11am to 10am
I would state in your house rules clearly that check out time is 10:00 hours.
I would state in your house rules clearly that check in time is XX:00 hours.
I would state in your house rules clearly that check in is not before XX:00 hours.
Have a set period of time for breakfast and state this .....breakfast is served between 08:00 and 08:30 hours in the morning.
No need to bother the guest as they usually have breakfast finished by 09:00 hours and ready to leave before check out.