Who would you recommend for quoting liability insurance for a IVPT?

A friend who has 100 hrs in his IVPT and lots of instruction-received is
thinking about a co-ownership or other structure with me (ATP, own/operate
a P-Baron, willing to train).

We'd want to get a liability policy in place to reduce the chances that
one of us having an accident would cause financial problems for the other.

Hull insurance may be helpful, but not required.

--
Craig