Since (see Step 2) the tax law favors homeowners, they get a special extra break.

But there may be some factors in your favor.

Be aware that even though Airbnb may find in your favor, the guest can dispute it and request a refund. 

And, if I'm a judge and you're ONLY going the route of trying to force someone to stop something, without taking action on your end to avert costs, I'd look less favorably on your actions.

NJ Tenancy laws heavily favor the tenant. 

I have been saving, and waiting for the market to become more favorable.

Numbers don't work out in my favor.

That said, is there anything about NZ which makes it more favorable to BRRRR?

-I would prefer to save this extra money on an online savings account to save up for my next house....Theres a few more rungs if you have more money to invest but their not really applicable to meWhat I’m asking is how can I tweak this personal finance system in favor of real estate intelligently.

There are people out there called "professional tenants" who are very conniving and use laws that favor tenants including discrimination laws to their advantage.