That is part of the problem with a lot of companies (I am not knocking insula as dont have all the info/facts just stating how the business works), they engage brokers to get them loans and the brokers collect a small fee. unfortunately many of the brokers may be similar to real estate wholesalers - have little to no experience. 

If the property manager uses a payment app integrated with the property management software to collect rent for the landlord, this is not gross income for the property manager.

Quote from @Tanner King: Where are the best places or best ways to collect data on specific markets?

If your average heating bill is $150, you may not collect enough in the winter months when the bill reaches $225 but you'll collect extra in the summer when it drops to $65.

How much rent will it collect?

Here’s a breakdown of some of the information you may need to provide for a cost segregation study.For existing buildings:List of equipment on the propertyProperty settlement stateAny appraisals or purchase/lease agreements Property maps or blueprintsSchedules, change orders or documents for future renovation plansSupporting documents for calculating real property book valuePrevious purchase price allocations that separated assets into their appropriate allocation and valuePast site inspections and photographsDocumentation that proves or records deterioration of assetsFor new construction:Contracts or contract paymentsLand and property sizeBlueprints of projectList of equipment involved or purchasedList of projected costs including costs for land developmentApplicable site inspectionsConstruction schedules and payment requestsPhotographs of completed assets or work in progressCost segregation specialists typically have an organized plan for the collection and analysis of the information provided.

The typical rent collection sites are not what I'm looking for. 

Some retain the late fees collected.

If your average heating bill is $150, you may not collect enough in the winter months when the bill reaches $225 but you'll collect extra in the summer when it drops to $65.

Because instead of collecting one rent check per month, you’re collecting multiple payments from different tenants.