I have been in a share situation for over 4 years now which has worked
exceptionally well. 3 partners who did not know each other prior to
this arrangement. We operate a separate check account from which all
expenses are paid and drew up a very brief agreement which evolved over
the 1st 12 months of the arrangement. Sharing with family will have
different dynamics but no reason why it should not work. The major
criteria is the co-operation between the parties & addressing issues as
they arise rather than letting them brew. Set out a brief checklist to
be completed on entry & more importantly on exit (so the boat is ready
for the next user), a timetable or booking system, a 3 or 6 monthly
maintenance program and you will all enjoy the benefits of "ownership"