As I understand it, there used to be an on-site management company that operated some of the units as a condotel. 

Since they can't leave or operate they have been holding the payments.

Ideally, you operate as close to break even (or slightly better) in a market that's strongly appreciating.

Like many (most) businesses it requires an investment of capital; money expenditure for ongoing marketing; management of operating, marketing and professional personnel; keeping accounting records and filing tax returns; established sales practices; constant monitoring of goals, budgets, and productivity; establishment and implementation of operational systems; and providing customer service.  

@Vitali Ganon we own and operate several MF properties in Jacksonville and we 3rd party manage for other traditional rentals 1-80 units.

Depending on what you want to accomplish as far as asset protection or just general business operation.

Quote from @Kaustubh Johri: I'm in the market to find a suitable software/service for my wholesaling operations.

We look at a per door expense, and see if the operator is above or below that.

There will need to be some sort of established history (rental income and operating costs) in order for a lender to calculate the income.  

If I go with the 5900 policy I will be operating at a loss and I will be forced to sell the house.