Options for 'trouble clients'

[jmerdich]

Ideas:
Events needing rebill view (not paid, over 2 weeks)
More than 3 bill attempts results in red flag when booking new event
Dismisable warnings on client if red flag, comes back after 2 weeks

[jmerdich]

Additionally, for 'typically late' clients, show average lead time or number of times late fee was waived.