While I mainly deal with sites now, I'm still also a domainer and occasionally buy/sell names whenever I find good deals.
I was looking at a few premium 1 word generics and city domains for sale yesterday, the price seemed reasonable and on the lower end. But after some short dd I found that there is a high risk that they are stolen. I'm still confirming this. But this is a fair warning to all EP'ers who occasionally buy domains - if the price seems cheap and the seller seems to be in a hurry be sure to check if they are not stolen. I've seen a few of these before and it's not always easy to figure out. Since this is fairly profitable for the theifs - we are talking about tens of thousands of dollars here in quick transactions - they frequently have an elaborate cover story and a lot background info set up.
Usually just a few google searches for the seller and the domains with the quotes and forum names, like "domain.net namepros" or "domain.net dnforum" will reveal some threads with suspicion raised about the domains that may have been stolen. You can also use the paid domaintools services to check whois history and check if there was a recent change in whois contacts and also contact the previous owner to verify that they weren't stolen.