As it says in the title what are some questions that I should ask about the partnership and about the airplane?
I think there's a good document on the AOPA site regarding partnerships ... sorry I don't have time to go chase it down
I'd spend a lot of time talking with the partners to see if my goals of the partnership match up with theirs. I don't want to be the guy who likes the plane as is and then be partnered with others who want to, and can afford to, put another $100K into it.