Does anyone provide support for a vacation rental property management company in need of process development for trust income and operations accounts to manage payables?

We have QUickbooks Online Plus and use the Class system per properties. When moving funds from the trust income account to be used in operations, we are having trouble with developing a consistent work flow in Quickbooks that will manage these processes. We currently use a holding account to process, and are stuck with how to process the incoming deposits on the operations side. If we move all transfers from income to operations into the holding account it simply zero's out the transactions. We want to create invoices that are paid by the property management revenue funds coming out of the Trust account, and be able to report monthly on earnings. The owner has been depositing large lump sums by transfer from one account to the other for years, and we haven't figured out how to reconcile this.