Sounds as if your parents would take on a lender role rather than partnership role, therefore, the documents are pretty easy and straight forward.

Banks look at your financials to assess the risk of the person they are lending to and if you show that you know how to use debt smartly they will love to lend you more especially when you can show them via documentation that your able to produce potential cash flow and 45k of proceeds with out even using one dime of your own money.

Most people who cry about when things go wrong down the road, just don't pay attention when they sign documents that create financial obligations when, it doesn't matter how many pages of fine print they put in front of you, you really need to know what you are signing.Item 1.

Does giving them the pamphlet and disclaimer clear us of legal risks?

I would NOT withhold keys from the tenant when he gets back because you run the risk of getting yourself is trouble for illegally keeping him out of a residence he is legally entitled to be in.

Hey Biggerpockets Quick question.Does anyone know any good landlord tenant document packages that can be purchased online?

Having documents that have been locally blessed with legal water is an expense much like buying a good saw.

What sort of documentation can I generate to help tell its story, or am I only going to have to rely on the yearly tax statements from airbnb?

A 2 bedroom single family home in front and legal separate studio apartment over a double garage in the back.

This legally lays out who's liable if anything goes wrong (even though bank can't come after you) he can.