I worked with Josh Ortiz (at Vivre) as a buyer, and he was just awesome. He knows the SF market and its dynamics backwards and forwards, and provided expert guidance and great advice at every step along the way. He gave me a very early heads up about the property which I ended up buying, knowing it would be a great fit for me, so that I was the first person to contact the selling agent. He gave me great advice on pricing and negotiating strategy, communicated seamlessly with the seller, and got me the property that I wanted (and his prediction of the final selling price after a bit of a bidding war was very accurate). Besides being a consummate and very effective pro, Josh is super laid back and easy going, very pleasant to work with, and this helped me deal with all of the stress and anxiety that this process can create. Highly recommended.