[petercooper]

I've been in this situation before. I did it all myself - it worked out OK. In hindsight, though, I'd advise a lawyer if you can possibly afford one as it could have gone horribly wrong ;-) (Others here have given better advice on that part.)

If you decide to go it alone anyway, you must first get a good feel for their true intent. It's like dating. Don't give it all up or get heavy on the first date. Keep things cordial and don't act secretive or defensive, but spend time talking to them and feel out what they're gunning for. You'll need some time after to reflect on things they said or impressions you got from their manner. The more people on your side who share in the talks, the better.

Like someone can detect a shady date even if they don't overtly do anything nasty, you should be able to sniff out bad intentions from the buyer. If they're just digging for information or yanking your chain, unless they're really smooth manipulators, you should get a bad feeling in your gut after the first or second serious talk.