Know your key dates of everything, contingencies, options to such, and strategize for getting any amendments to extend if need be. 

If the people want to extend after the first year then just do an extension, why lock yourself into 2 years when you don’t know what type of tenant they will be?

You may be able to extend Liability coverage from your homeowners policy (have to add LLC to the homeowners also).  

I'd definitely be interested to hear if any of these add-on platforms have opinions on this specific topic - for example, if the guest purchases an alcoholic add-on through this third-party add-on site, do they have any waiver of liability which extends to cover the host?

This also makes it harder for you to develop a sudden soft spot and let her talk you into extending.

I have been getting requests from guests on VRBO for extended stays  - up to 5 months.

The interest-only balloon of 3 years with a buyer option to extend for 2+ years will give you time to secure permanent financing.

Some of the people may be friends or extended family that is hard for her to control, but she is ultimately responsible for.Would you rent to her again?

I am creating a course on RV parking investing (glamping, destination parks, extended stay parks, and development).

In the H.R. 3936, Built in America Act, it was proposed to extend the 100% bonus depreciation until January 1, 2027.