I'm having my first time mid term guest arrive next year and the contract I got from OR is intended for short term guests, especially the wording about payments. I want to know if there's a way to have two different contracts (short term and mid term). Or if I can edit the contract I'm using.
You can create a new mid-term rental agreement, either a template with field codes for many of them, or a one off special agreement for one guest.
You'd also want to review your messaging when creating the booking. If you are planning to pursue mid term rentals, you could create different templates and triggers for mid versus short term rentals.