If the dues are exorbitant or there isn't a clearly defined value being brought to owners, maybe pass on it, but I'd say by and large that STRA's are well worth what is usually a pretty small individual investment. 

Check out some of the great things happening in Detroit in 2024https://michiganchronicle.com/2024/01/03/major-developments-that-will-define-detroit-in-2024/

I would absolutely collect that from them if they were properly notifiedCan you define what you mean by notice?

The tax code may never define "Airbnb" but there are rules surrounding these type of activities which I will give an brief overview below. 1) My STR goes on Schedule C:  It depends.

Define what you know to do, cause right now I am not buying that. 

I think defining and compensating costs like these helps avoid resentment that can happen when a party has to do otherwise unpaid work or otherwise feels the workloads are unbalanced. 

If they have their own maintenance person be sure to define what maintenance they will be doing and what you will be responsible for.

This defined rental income as passive income and no longer allowed rental property losses to offset active income.

The beauty of being an adult is you get to define success however you want. 

Just my advice - research is key, so take your time to learn and define your strategy.