But I rent to traveling workers, not vacationers.

The only way I know of in which senior parks vary in FL versus other states is that many 55+ aged vacationers flock to FL during the winter months to avoid the cold up north.

Also, one of her ex-coworkers is actually already investing there (thus, how we found these two properties), and she's been having a successful venture so far renting to vacationers.

Watch how bad it's going to be when those vacationers return home..I seriously hope ya'll take precautionary measures.. 

Moral of story is that people, especially vacationers, are going to be picky no matter what.

20% gets thrown around pretty often if you’re in an actual vacation market the question is not “Will it make money”the question is “Can I handle dealing with drunk vacationers sleeping in my house”

Just pick a nice area where vacationers would want to go.

VRBO is unraveling... about a year ago rates started going up... they now hit the owner (us)  and hit the vacationer renting the property ...    

Vacation rentals, that are either new or recently refurbished and that are in good locations with amenities vacationers want, rent much more often at a much higher rate.

I have found that many vacationers who come here will pay more per night and rent a home more often when a home has been renovated and loaded with of these types of fun amenities.Good luck with whatever you decide.Keith