Confirm with your CPA that any excess loss was reviewed for NOL calculation and properly carried forward.

Take ownership of your mistake and learn to do the proper due diligence recommended above😊

I recommend learning a bit on how to read the financials, but find yourself a great Accountant to help you analyze the financials and tax returns to make sure things make sense and are proper. 

It's a great starter book for the financial foundations of real estate investing: https://store.biggerpockets.com/products/set-for-life-revise...I would also recommend Small and Mighty by Chad Carson: https://store.biggerpockets.com/products/small-and-mighty-re...Real Estate Rookie: https://store.biggerpockets.com/products/real-estate-rookieHouse Hacking: https://store.biggerpockets.com/products/the-house-hacking-s...

I'm just a product of their resources such as a lot of folks here.

As others has shared, I am able to hook them up properly to avoid any issues with tenant installation.If a unit dies, and I do not want to replace it, I just terminate the addendum and remove them. 

My systems are ok, rather I have to give credit to the individuals I work with as well as proper tenant screening.

I’ll try to answer some of your questionsonce a note has matured the note holder has the legal right to call the note due - with proper notification to the debtor.  

not to go into the Tulles Kevin but modern zoing is going right back to that kind of product..

. - Agreed, sounds like you don't have the time to properly vet candidates.