I forget; it was payment processing related) that required me to have a website for the business.

For example how much to reserve for management fees (I don't have time to host myself), cleaning, electricity.  

I know Air/VRBO are strongly pushing for hosts to offer non-cancellable bookings at a 10% discount. 

I second what John said, but if you are severely design impaired like myself, maybe ask around some local hosts / host groups. 

The competition is fierce, so simply rearranging photos, swapping some in and out tells the algorithm that you're an "active" host and you'll be more visible on the platforms. 

For us STR hosts, I know we are very conscientious about guest experience and I want to be proactive about doing things to ensure my business operates successfully.Thanks!

@Henry Perez  Things like websites, bios and marketing materials help on credibility as well as your LinkedIn and Facebook profiles. 

As a super-host going back over 14 years, I know how important it is to have a great experience.

You can create an account to advertise yourself as a host or a guest (or both) and get matched with others.

I'd hop on Airbnb as a guest, search the area the potential property is in, and find some properties that are somewhat comps (similar location, amenities, size, etc.) and connect with the host hosting the property.