You have actually trained them to pay late through your misconception of how the regulations actually apply.

We're primarily interested in the Middle East/Turkey and rules and regulations aren't always consistent.2) We don't use interest for religious reasons, so we will be using our own cash or working with partners.

There's a large garage that I'd like to convert to the third unit - using the ADU regulations because just doing a "normal 3rd" unit I run into: garage 1 ft from prop line, parking for MFR is calculated per bedroom (requiring ~ 8 spaces) and I'm not sure if that's possible unless I get creative or lose yards, let alone if the costs make sense at 600sq ft.

You need to study your state landlord tenant regulations if you want to continue successfully in business.

If you are seeking investors in a project there are some SEC regulations covering private investors.

Local and state gov't's just designated OZ's back in April of last year and the final regulations, which mostly clarify rules for fund managers, aren't out yet or have just come out.

That determines what you file, when you file, and with whom you file (because there are both federal and state regulators).

Some states sell tax deeds and that will depend on the specific state regulations. 

You should have accessed a copy of your state landlord tenant regulations before you purchased your property, they can usually be found on line.

There are a few funds that have been created, but it seems like no one wants to be the first player to really dive in, since there's still uncertainty on the regulations.