This year, the State Legislature gave all counties the authority to change STR's laws however they see fit.

Having a lease from someone that has no authority to lease the unit does make them a tenant.  

Quote from @Josh Ball: Quote from @Jonathan Greene: Smokers aren't a protected class, but they could argue that whatever the underlying "medical" issue for the card could be part of one.

They aren’t able to get a mortgage themselves so they would provide the money while the mortgage and deed would be in the others name.  

Assuming that they aren't simply lucky in market timing, excessive in leverage, or excessively risky, why do you think that some companies and leaders ARE able to duplicate the ROI driving expertise and/or improve personal-business productivity in a way that allows scalability?

Everywhere I look, properties aren't low enough for BRRRR to be worth it and I'm looking at taking a loss.

I'm just here to note that an LLC does not offer a single tax benefit, nor does it allow any deductions that aren't allowed without an LLC. 

They aren't spending their own money, so they are less likely to take care of the rental or follow rules.

.- Ask the attorney if your aunt & dad need to authorize lien, or just aunt.2) Understanding your options to force payoff of the lien.- Ask attorney how you can enforce collecting on the lien when you need to.3) Getting full control of the property, while allowing your aunt to keep her ownership.- Have attorney draw up a contract to do this.Suggest you offer your dad some cash, now or in the near future, to motivate him to transfer his ownership to you.It may not work out, but you will learn a lot either way!

You aren't offering any unique amenities.