Instead of regular deals they have a lot of these rate/ term refi products on their books.

Be aware that certain staging items are not designed for regular human use , and may be slightly undersized in order to make the space look bigger.

There will always be problems that arise with rental properties, but having a regular income to dip into if needed is important.

Don't give up keep chasing your money because chances are when you finally get paid it will hurt them more. 

And also engaged with institutional investors on a regular basis.I'm highly entrepreneurial and figured out that what I really want to do in my professional career is US multifamily investments.What I've done so far is selecting the markets I'm interested in (in TX), building a comprehensive financial model to analyze deals, and creating a very detailed due diligence list.

In this method, the buyer makes regular payments to the seller over a set period and then makes a large final payment (balloon payment) to complete the purchase 

Did you inspect the property regularly to prevent things from getting out of hand?

If you feel the need to verify the income exists, I guess bank statements could be requested in addition, BUT depending on the type of self employment payments aren't always regular.

Heck, my CPA and I regularly discuss and are forced to make our own assumptions on how the IRS may interpret something in our real estate taxes, if we were to get audited.

I think even regular CPAs are not fully aware of this!!