Once you have that all hashed out, I would find a templated operating agreement online that you can buy or download free and then tweak it accordingly based on everything you discussed. 

for STRs i automate the initial booking message, a msg a few days before, a msg with their checkin instructions the morning of, a msg 24h after arrival, a msg the night before checkout, and a msg a few hours after checkout. in doing so, you'll never have to manually reach out unless they have a problem/question. the key is write your automated messages so they sound authentic and friendly, anticipate the guest's needs before they can ask questions, and constantly tweak your process if you find that you're still having to answer the same Qs over and over.

Build your checklist and add to it, tweak for property type, sellers, etc.Yes, you should get tenant interviews as a right in your PSA.

The OTA likes to know there's an actual person behind the listing, so little tweaks made weekly help with that.

You can tweak it by changing some of the entities (like using series LLCs), or using DST in high cost LLC state like CA.

Would be nice if there was some software to make a tweak everday to show activity.Or even better would make changes to pictures etc based on assigned dates or season.

You have to tweak it to find what works for your market, property and guests.

I have tweaked our Trusts. 

I’ve built and tweaked it over the years.

I think a tweaked long term lease is what you should use.