If your hopes were to eventually have this property as supplemental income then I'd suggest selling it and buying a true investment property.

You have the option of supplementing that with your own evidence.

As pointed out most banks will have their own form of PFS that you can use but putting a balance sheet together and supplementing it with additional detail in my experience has never been a problem..

Cozy’s application isn’t currently customizable, although you could request supplemental information outside of Cozy as well.

Do you just want to supplement your full-time income?

My plan was to buy and hold them indefinitely for supplemental retirement income, but I have recently begun to think about selling one or two. 

Cash is the king and I need cash flow so I can supplement my income or retire at some point.

We would like to buy and hold, and are looking for some monthly cash flow to supplement our future Early Retirement plans.We have lots to learn, and are just starting to dig through the resources on this site!

I'm about to quit my corporate job and randomly came across a property that I believe I could buy and make a decent profit on rent each month to help supplement my income while building clientele for my new business.

They only utilize certain features of Buildium and I have seen that some others do that as well, supplementing it with Quickbooks, Quicken, etc.