What is the history of this boat?
What is not working that you know of?
Has the boat had any hull or keel damage or repairs?
How old are the sails/rigging/electronics?
How many hours are on the engine and what kind of shape is it in?
When was she last surveyed and is a copy available?
Are you aware of any leaks or deck voids or delamination? Blisters?
Are you aware of any other problems I have not mentioned?