So, as previously mentioned, the rules can be changed at the developer's whim.

There's no point in having a rule if you don't know how to enforce it.Example:Requirement to Maintain Renters Insurance:The Tenant acknowledges that the Landlord’s insurance does not cover the Tenant’s personal belongings, injuries, or other losses.

For me once I've identified the target market/ideal guest, my rule of thumb is if enhances their stay/they'd pay extra for it splurge.

If she lives rent-free, you retain control of the property but lose the ability to claim rental-related deductions.For long-term planning, consult a CPA and attorney to ensure compliance with tax rules and align ownership structure with your goals, including potential conversion to a rental or estate planning considerations.

Unfortunately, I do have a property in an HOA, which often comes with their own set of rules that you'd have to follow of course. 

Miami has strong demand for short-term rentals, but make sure to check HOA rules and city regulations since some areas have restrictions.

Just how important is this “rule”.  

That's the only solution and it doesn't require fifteen paragraphs to explain or justify.

In my experience, finding cash-flowing deals on-market can be challenging here (1% rule can be hard to find) but not impossible.

I ended up evicting him because he continued to violate the no-pet rule.