Legal protection for AirBnB?

[Oliver Sparks]

I'm curious to know whether it would be most appropriate to have a business (LLC?) for running an AirBnB business, separate from an LLC that is already used primarily for construction and rehab work. I'm wanting to build a system of short term rentals in the midwest, mainly in the Kansas City area. But I wonder whether it would make most sense for liability reasons to track these sorts of business transactions under separate businesses.

I'd also be curious to know what resources other people used to help learn the best way to systematize their short term rentals.

Any advice is appreciated!