Providing Legal Solutions to Southwestern Pennsylvania Clients. Goldfarb, Posner, Beck, DeHaven & Drewitz has a well-earned reputation for handling a wide variety of legal issues with skill and diligence.  Our attorneys bring more than 130 years of combined legal experience, with specialized knowledge of many areas of the law. We are AV® Preeminent™ Peer Review Rated by Martindale-Hubbell®, the highest recognition possible in the legal profession.