This is the standard text for the preparation and negotiation of real estate opinion letters, providing detailed and comprehensive analysis of the theories and standards of legal liability and professional responsibility which govern the preparation and enforcement of all legal opinions—a subject of increasing concern to lawyers, law firms and professional liability insurers. It addresses the issues of general enforceability of mortgage loan documents, usury, choice of law, title issues, ethical considerations, land use and environmental concerns, among other matters unique to real estate transactions.