I would ask the seller for an inventory, or if I was selling produce one before I started. Ifit's a more friendly transaction, start by asking the seller what they intend removing. Sails, anchors and running rigging should all stay. And anything specified in the broker's advert. So should some warps and fenders. Tender, charts and nav. equipment may be open to negotiation.
I was lucky, when I bought my boat the chap was retiring from sailing, so everything down to the teaspoons and pencils came with her. I only had to buy a hand bearing compass and a log to start with.
I think most would expect everything on a boat if at brokerage ,to be included. However if its on private sale or in active use, an inventory is vital -so much stuff is sort of fixed on -for example a danbouy, that could be readily removed ,especially if the vendor is moving on to another boat. The RYA suggested contract covers this -recommend you buy the book about buying and selling second hand from them(specially if its a private sale) as it does have a contract in . I'm interested becaue I'm just in the process of deciding what to include in the inventory of my boat, and I'm being influenced by the inventory of the boat I'm looking at!
what you leave on board a boat you are selling depends a bit upon what is on board the boat you are buying!
I negotiated a few extras when I bought my boat... owner was moving on to another boat, and had for example only left one winch handle on board, so asked for another one.... he took a lot of stuff off, and I negotiated a better price on that basis, and then bought mostly new.....
And I say - type up a full and complete inventory, if selling, and insist on one if buying.
What I do, however...
When I bought Mirelle, through a very grand broker, David East, in 1984, there was no inventory, the seller and I just shook hands in the pub (David bought the beer!) For the next year or so, Francis kept finding extra bits of boat in his garage and handing them on to me.
Earlier this year I sold our launch, privately. I did say that one fender did not belong to the boat, and removed it, before we shook hands, but for the next several weeks I kept finding spares and bits in the garage and handing them on! /forums/images/graemlins/wink.gif
If I was selling I would leave on board enough so that the vessel was perfectly usable (ie fenders, a few warps, VHF, echo sounder etc), BUT if I had just bought a fancy GPS or some other brand spanking new kit that was not specific to the boat then I would probably remove this before putting the boat on the market (wot someone does not know about when viewing doesn't harm them!) and replacing the new stuff with older although still servicable kit, as long as I did not figure the removed gear would impact on the sale price / likelihood of a sale.