Owners need their numbers. Sharing a system login is not the answer, and neither is you emailing reports on request.
Sending each owner a report on request scales badly and interrupts whoever is asked. Giving them a login to your operational system solves the interruption and creates a worse problem, because they can now see more than they should and any permissions mistake becomes a confidentiality problem with a client rather than an internal one.
We build a portal under your own name and domain, where each owner sees their own numbers and nothing else, updated from the systems already producing them. It runs on infrastructure you control. You set what each owner can see and for how long, and the whole thing is yours to keep regardless of whether we work together again.
One property manager with 10 properties in 4 countries got back 11 hours a month that used to go on manual entry.
Their month-end close now runs in about 40 minutes. We built it in four weeks.
Start with the report owners request most. That single view usually removes most of the incoming questions.