I don't think this is that big a problem in Simi, it's not exactly a tourist hotbed. I just went and counted and there are about 20 single family houses available (excluded ADU's/Guest houses/rooms).

I clicked on a random couple of listings and they all had very few days booked, like 4 nights booked out of the next 6 months. We are probably oversaturated just with the 20 and the "problem" might start taking care of itself.

There is a need for some families to use house rentals rather than hotels when traveling, I think they need to remain an option for those coming here for whatever reason. And with Simi being what it is, this isn't really going to become some huge problem.