I once got a 6 mo. old, 6 lb., unspayed, Silkie off of Craigslist for $50. I toyed with keeping her, but ended up working with her on potty skills and manners, got her straightened out, then rehomed her through the rescue I volunteer with. I agree, you have to be so careful, but yes, sometimes the ads are legit. Is there a picture in the ad? I can run it through Tin Eye and see if it's a photo that's out there on the net and been used before. Can you post a link to the ad?
http://www.yorkietalk.com/forums/gen...kie-yikes.html