Some more items to include:

Cons:

Repair cost - approximately 5-7% of monthly income. Even without actual repairs, you still need to put up about 5% reserves per unit per month income to prepare for a future repair needs which may come in unexpected.

Vacancy rate - 25%

Pros:

Depreciation deduction savings - good for you. Even if you may have a small negative cash flow, always redo your calculation taking depreciation deduction, then, the numbers may come out as even or positive.

If after assuming the worst, such as 5% repair reserve, 5% maintenance reserve, 25% vacancy reserve, and etc, and taking depreciation deduction, you still have even or positive numbers, then it might be a deal.